You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I am Christopher Anderson, want to travel from PHX to HOU. Please help me in booking my ticket.

ASSISTANT: Sure, can I know your preferable dates?

USER: Sure, my travelling dates are from 05/11 to 05/13.

ASSISTANT: I found a flight 1011 of Frontier airlines matches with your preferences, can I proceed?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you, have a good day.

USER: Thank you.