You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best I can serve you?

USER: Jacob Young here, due to an emergency I want to cancel my recent reservation. Can you please help me with it?

ASSISTANT: Sure, I will help you with cancellation. Please stand by.

USER: Ok.

ASSISTANT: As you informed me to cancel your reservation. But, there is no reservation found with your name to cancel.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for opting us.