You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I am Timothy Thomas. I would like to book a flight ticket from IAD to MCO.

ASSISTANT: Sure, can you provide me your travel dates?

USER: Yes, I am planning to start on 09/30 and return back on 10/02.

ASSISTANT: I am sorry, there are no flights available.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you, have a good day.