You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Kevin Johnson, can you help me to book a flight from PHX?

ASSISTANT: Kevin, please provide me your destination airport code.

USER: My travelling destination airport code is IAH.

ASSISTANT: May I know your journey dates please?

USER: My travelling dates are 05/12 and 05/14.

ASSISTANT: I found a flight in Southwest airlines with price 100. Can I book the ticket for you?

USER: Proceed with booking.

ASSISTANT: Your ticket is confirmed and the flight number is 1011.

USER: Thank you.

ASSISTANT: Thank you for contacting us, have a good day.