You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: My father want to meet his old friend in Charlotte, can you please help me to book his flight ticket from IAD to CLT?

ASSISTANT: Sure, can I know the journey dates please?

USER: Sure, he is willing to travel on 03/04 and return from CLT on 03/06.

ASSISTANT: May I know your father name please?

USER: Sure, his name is Robert Edwards.

ASSISTANT: There is a flight with price 100 in Southwest airline, shall I book it?

USER: Sure, you can proceed.

ASSISTANT: I have booked the ticket with flight number 1024.

USER: Thank you very much, he will be very happy.

ASSISTANT: You are welcome.