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

ASSISTANT: Hello, how can I assist you?

USER: Owing to an emergency, I would like to cancel my recent reservation. Could you help me in cancelling?

ASSISTANT: Sure, we are here to help you. Please wait a moment I will check with it and revert you.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: No issues at all. Thanks for your help.

ASSISTANT: Thank you for choosing us.