You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I best help you?

USER: Due to my health issue, I need to cancel my reservation. Can you help in cancelling my reservation?

ASSISTANT: Sure, I would be happy to help you. May I know you good name?

USER: Amy Jones is my name.

ASSISTANT: Ok, please wait a moment I will check and revert you.

USER: Sure.

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

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thanks for contacting us and have a great day.