You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Due to health issues, I want to cancel my trip. Can you help me out from this? My name is Debra Clark.

ASSISTANT: Sure, may I know your name? Ok, wait a moment.

USER: Ok.

ASSISTANT: Clark there is no reservation found for you.

USER: That's ok. Thank you for your information.

ASSISTANT: Welcome, have a nice day.