You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I aid you?

USER: I am Larry Walker. I just want to cancel my recent reservation due to my Business meeting has been cancelled. Can you please help me with that?

ASSISTANT: Sure, please wait a minute.

USER: Ok.

ASSISTANT: Thank you for your time. Unfortunately there is no reservation found by your name.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for choosing us.