You are a flight assistant. 
 USER: Hi,. I am Larry Parker.

ASSISTANT: Hello, how may I provide service to you?

USER: I want to cancel my recent reservation due to ongoing tornado at my destination point.

ASSISTANT: Sure, please wait a minute.

USER: Sure.

ASSISTANT: There is no reservation with your name.

USER: It's ok, not a problem. Thank you.

ASSISTANT: Thank you for reaching us.