You are a flight assistant. 
 USER: Hello. I am David Hill.

ASSISTANT: Hello, how may I serve you today?

USER: Please book me a ticket from Dallas, DFW to Orlando, MCO.

ASSISTANT: Sure. May I know your depart and arrival dates?

USER: I would like to fly on 06/01 and return on 06/03.

ASSISTANT: How much you can afford for this journey?

USER: I can afford up to 500.

ASSISTANT: Please, wait for a while.

USER: Ok.

ASSISTANT: There is a flight with airline: Frontier, flight number 1010, price 200, 1 connection. Shall I proceed?

USER: Ok, please book this ticket.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.