You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Debra Davis.

ASSISTANT: How can I aid you?

USER: Can you please book a flight ticket from PHX to DCA?

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, I need to travel on dates of 12/20 and 12/22.

ASSISTANT: There is a flight with number 1005 in airline UA, the fare is 100 with 1 connection. Can I book it?

USER: That is fine, please proceed with booking.

ASSISTANT: Your ticket is reserved, have a safe journey.

USER: Thank you for your help.

ASSISTANT: Thank you for picking us.

USER: Most welcome.