You are a flight assistant. 
 USER: Hello, I am Raymond Moore.

ASSISTANT: Hello, how can I help you today?

USER: I want to change my existing reservation, due to heavy rainfall at my destination my match has been postponed. Can you help me with that?

ASSISTANT: Sure, please wait for a while I will get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting, no flight reservation found on your name.

USER: Ok, not an issue. Thanks for your information.

ASSISTANT: Thanks for choosing us.