You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Debra Lewis here. I want to attend a client meeting in Philadelphia, can you please help me in making a ticket?

ASSISTANT: Sure, I will help you out.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: My travelling dates are 07/26 and 07/28.

ASSISTANT: Can I know your airport codes please?

USER: The source and destination airport codes are PHX to PHL.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed with this flight?

USER: That's fine, please proceed with booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for booking the flight ticket.

ASSISTANT: Thank you for choosing us.