You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Christopher Wilson here. Could you book my ticket from ORD to PHX?

ASSISTANT: Sure, I am here to help you.

USER: My trip dates are 11/30 and 12/02.

ASSISTANT: We have found a direct flight with UA airlines, flight number 1004 and the fare of 100.

USER: Please book my ticket.

ASSISTANT: Ok, your booking is done.

USER: Thank you.

ASSISTANT: Your welcome.