You are a flight assistant. 
 USER: Hello, I am Larry Thompson here.

ASSISTANT: Hello, how may I assist you?

USER: Due to heavy thunder storm at my place I would like to cancel my recent reservation. Can you help me in doing this?

ASSISTANT: No reservation found with your name.

USER: It's ok, no issues.

ASSISTANT: Thank you for choosing us.

USER: Thanks for your information.

ASSISTANT: Have a great day.