You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I need to cancel my recent reservation due to some health issues, can you help me in doing that?

ASSISTANT: Sure, may I know your name please?

USER: I am Jerry Nelson.

ASSISTANT: Wait a while, kindly.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no reservation found for the user name in our back end to cancel it.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for opting us.