You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Patrick Evans.

ASSISTANT: Good morning Evans. How can I help you at this moment?

USER: Owing an emergency, I want to cancel my recent reservation. Can you please help me.

ASSISTANT: Sure, I will help you with cancelling reservation. Please be hold on for a minute. Thank you for waiting.

USER: Ok.

ASSISTANT: Sorry Evans, I did not came across your name in the reservation list to cancel.

USER: It's ok, thank you for checking.

ASSISTANT: Most welcome. Thank you for choosing us. Have a great day.

USER: Welcome.