You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how best can I assist you?

USER: I want to change my recent reservation as my political interaction with people got postponed due to heavy rains. Can you hep me with that?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: On what name do I need to check the reservation?

USER: I am Raymond Lee.

ASSISTANT: Ok, please wait, Let me check the status of your ticket.

USER: Sure.

ASSISTANT: Thanks for waiting.

USER: Ok.

ASSISTANT: We regret that, we did not find any reservation on your name to change it.

USER: Ok, no problem. Thanks for the information.

ASSISTANT: Thanks for opting us, Have a great day!.