You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Kathleen Roberts, want to travel from AUS to DEN. Please help me in booking my ticket.

ASSISTANT: Sure, I will help you. Please let me know your travel dates.

USER: My travelling dates are from 05/11 to 05/13.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: There is a flight available with JetBlue airlines and the ticket fare is 200 only. Are you comfortable with this flight?

USER: Yes, I am comfortable with that, please proceed.

ASSISTANT: Roberts, your ticket is booked and your flight number is 1020.

USER: Thank you.

ASSISTANT: You are welcome and have a nice day.