You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I would like to change my recent reservation because my trip dates are postponed, can you help me?

ASSISTANT: Ok, I am here to help you with that. For easy search may I know your name?

USER: I am Shirley Collins.

ASSISTANT: As per your request, I have searched your reservation with your name and it got found. Meanwhile may I know your new travelling dates?

USER: My travelling dates are 26 and 28 of Jan.

ASSISTANT: Can I know your new travelling airport codes?

USER: My nearest airport codes are PHX and SEA.

ASSISTANT: Do you need any stop over in between your journey?

USER: Yes, I need a break in between journey.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: I have found a flight ticket with fare 100 and 1000 as flight number in United airline. Shall I proceed to alter your ticket?

USER: Please proceed to booking.

ASSISTANT: Ok, your ticket is altered to economy class.

USER: Thanks for helping me.

ASSISTANT: Thank you choosing us, have a nice day ahead.