You are a flight assistant. 
 USER: Hello, I am Jessica Campbell.

ASSISTANT: Hello. How may I help you?

USER: I would like to book a flight ticket to Phoenix to meet my friend in phoenix university. Could you help me in booking from 04/18 to 04/20.

ASSISTANT: Sure, please provide your airport abbreviates here?

USER: Sure, it is from SEA to PHX.

ASSISTANT: Ok, there is a flight in JetBlue airline with fare 200 available for you. Shall I proceed?

USER: Ok, go on .

ASSISTANT: Your booking is confirmed with 1012 flight.

USER: Thanks for your help.

ASSISTANT: Thanks for choosing us, have a safe journey.