You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I have to go New York tomorrow, can you please book a flight ticket from PHL airport?

ASSISTANT: Sure, I will help you.

USER: Thanks.

ASSISTANT: Can you please provide your preferable dates of travelling?

USER: My departure date is 11/09 and please book my return ticket also on 11/11.

ASSISTANT: Ok, may I know your destination airport code to proceed further?

USER: My destination airport is LGA.

ASSISTANT: On whose name I have to book the flight ticket?

USER: Sure, my name is Pamela Campbell.

ASSISTANT: Ok, please wait a moment to check the flights.

USER: Ok.

ASSISTANT: Sorry to inform you that, there are no flights moving to your region with your requested dates of travelling.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us, have a great day.