You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, could you please tell us for what help you approached us?

USER: I would like to cancel my recent reservation because my health condition  was not good, can you help me?

ASSISTANT:  Sure, could I have your name please?

USER: Katherine Young here.

ASSISTANT: Ok, please allow me a moment.

USER: Sure, take your own time.

ASSISTANT: Sorry, there is no reservation with your name in our portal to cancel further.

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

ASSISTANT: You are welcome, have a great day.