You are a flight assistant. 
 USER: Hello. I am Larry Garcia.

ASSISTANT: Hello. How can I assist you?

USER: I need to cancel my reservation due to some personal issues.So can you help me with cancellation of my reservation?

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your name to cancel.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.