You are a flight assistant. 
 USER: Hello, I am Steven Scott.

ASSISTANT: Hello, how may I serve you for the day?

USER: I want to change my reservation as the beer festival which I want to go got postponed.

ASSISTANT: Ok.

USER: Can you please help me?

ASSISTANT: Sure. Please wait a minute.

USER: Ok.

ASSISTANT: Thanks for your time, we did not find any reservation with your name.

USER: It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for availing us.