You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: My name is Sharon Anderson. Owing an emergency, I want to cancel my reservation. Can you help me for that?

ASSISTANT: I am happy to help you, please be on hold.

USER: Thank you.

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

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

ASSISTANT: Thanks for choosing us, have a good day.

USER: Welcome.