Start with the purpose: "I would like to arrange a short meeting about the application." Then ask about availability: "Do you have any time on Tuesday afternoon?" This gives the other person a useful period without assuming a particular slot is free.
A possible exchange is: "I can offer three thirty." "That works for me. Is that Tuesday the twelfth?" "Yes." "Thank you. Will we meet at your office or online?" Each question resolves a different practical detail.
Read back the final arrangement
Close with a compact confirmation: "So, Tuesday the twelfth at three thirty, online. I will use the link in your email." For people in different places, state the relevant time zone and verify it rather than relying on the phrase "your afternoon."
If you are not ready to accept, say so: "Could you hold that time while I check my schedule?" The other person may be unable to hold it, so do not treat the suggestion as a guaranteed booking.
Practice a version in which your first choice is unavailable. Offer two realistic alternatives and confirm only the chosen one. Afterward, check whether both speakers could write down the same date, time, channel, and purpose. Fluency matters less here than leaving the conversation with a matching arrangement and a clear understanding of who will send any necessary details.