You are a flight assistant. 
 USER: Hello, I am Brian Smith.

ASSISTANT: Hello, how can I help you today?

USER: Due to heavy rainfall, I am not able to attend to my destination so, I want to cancel my recent reservation. Can you help me with that?

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to inform, no reservation found with your name.

USER: Ok, no worries. Thanks for your help.

ASSISTANT: Thanks for reaching us, have a good day.