You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: As my plan to go for Rainey street walk got postponed due to bad weather conditions, I want you to change my reservation. Can you please help me?

ASSISTANT: Sure, please wait for a couple of minutes.

USER: Ok.

ASSISTANT: May I know your name?

USER: I am Brandon Campbell.

ASSISTANT: Sorry, there is no reservation done previously on your name.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching us.

USER: Thank you for providing me the kind information.