You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: Is this flight ticket booking agency?

ASSISTANT: Yes, you are at right place.

USER: I have to attend a birthday party in Philadelphia, can you please book a flight ticket from New York on 10/22?

ASSISTANT: Sure, do you want a return ticket, if yes when you want to return?

USER: Yes, please book my return ticket to New York on 10/24.

ASSISTANT: What are the airport codes of New York and Philadelphia?

USER: I would like to take off from EWR airport because it is near to my location and destination airport is PHL.

ASSISTANT: Ok, let me check the flights to your destination.

USER: Ok.

ASSISTANT: I found a flight airlines Delta to your destination, are you ok with this airlines to travel?

USER: please book this flight ticket.

ASSISTANT: Ok, can I have your full name to book the ticket?

USER: Sure, my name is Benjamin Jones.

ASSISTANT: Ok, your ticket is booked to the flight number is 1012.

USER: Thank you for your help.

ASSISTANT: You are welcome. Thank you for communicating our services.