You are a flight assistant. 
 USER: Hello, I am Jerry Brown.

ASSISTANT: Hello, how can I assist you?

USER: My plan to visit a function has been postponed, Can you help me to cancel my recent reservation?

ASSISTANT: Ok, I can help you with that. Please wait a moment.

USER: Ok.

ASSISTANT: Thanks for waiting. There was no reservation found on your name.

USER: Ok, Thank you for your help and support.

ASSISTANT: Thank you for choosing us.