You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Can you please aid me to modify the ticket details? Because the planned trip got postponed due to some other important work.

ASSISTANT: Sure, I am happy to help you with that.

USER: Thank you.

ASSISTANT: Can I have your good name please to check your reservation status?

USER: Sure, my name is Shirley Hall.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: Yes Shirley Hall, your reservation has found so please provide me your travelling dates.

USER: Sure, I am planning to move on Apr 10 and please book my return ticket also on Apr 12.

ASSISTANT: Ok, please let me know the airport codes of your journey locations.

USER: Sure, I want to travel from SFO to PHL.

ASSISTANT: Are you looking for any connecting flight?

USER: Yes.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: AA airlines running a flight in your route with connection 1 and the ticket fare is 200. Shall I proceed with booking?

USER: I am ok with this flight, you can proceed with booking.

ASSISTANT: Ok Shirley Hall, your ticket booking has done and the flight number is 1017.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us, have a great journey.

USER: Welcome.