You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Jack Nelson.

ASSISTANT: How may I assist you?

USER: I want to visit my friend in Philadelphia.Can you book a ticket from PHX to PHL?

ASSISTANT: Sure, may I know your travel dates?

USER: The departure is on 02/05 and return is on 02/07.

ASSISTANT: As per your details there is a flight to book your ticket with airline Frontier. Shall I proceed?

USER: Yes, proceed.

ASSISTANT: Your ticket has been booked with flight number 1029.

USER: Thank you for your help.

ASSISTANT: Thank you once again for contacting us.