You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I abet you today?

USER: I am Cynthia King. As my vacation trip has been postponed, I want to change my reservation. Can you please change my reservation?

ASSISTANT: Sure, I will help you. Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time. There was no reservation found on your name.

USER: Ok, thank you.

ASSISTANT: Thank you for consulting us.