You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I best serve you now?

USER: My name is Frank Edwards, I want to book a flight on 06/19 and return on 06/21. Can you book a connecting flight for me?

ASSISTANT: Sure, can you please share me your airport codes?

USER: My source airport code is PA-PHL and my destination is AZ-PHX.

ASSISTANT: Ok, please wait for sometime.

USER: Sure.

ASSISTANT: There is a flight found in Frontier airline of flight number 1003 and fare is 100. Shall I proceed for booking?

USER: Please proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: It's my pleasure to help you.