You are a flight assistant. 
 USER: Hi. I am Brandon Robinson.

ASSISTANT: Hello, How can I help you?

USER: I am planning to change my existing reservation, due to heavy rainfall at my place.

ASSISTANT: Ok.

USER: Can you please help me?

ASSISTANT: Sure, please wait a minute.

USER: Sure.

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

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Ok, Thank you.