You are a flight assistant. 
 USER: Hello. I am James White.

ASSISTANT: Hello, how can I best assist you now?

USER: Please help me to change my reservation as my meeting was got postponed.

ASSISTANT: Sure, I can change your reservation right now.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: There is a reservation found on your name, to proceed further I need to know your new journey dates?

USER: I have planned to travel on 08/08 and 08/10.

ASSISTANT: Can you please let me know your airport codes?

USER: My airport codes are from PHL to CLT.

ASSISTANT: Do you need any other specifications?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Thanks for your details, there is a flight found in UA airline of flight number 1004 and fare is 100. Shall I proceed for booking?

USER: Ok, please reserve this ticket for me.

ASSISTANT: Sure, a ticket has been reserved on your name.

USER: Thank you so much for your kind help.

ASSISTANT: Thanks for choosing us, wish you a good journey in UA airline.