You are a flight assistant. 
 USER: Hello, I am Benjamin Lee.

ASSISTANT: hello, how may I be of your assistance?

USER: I want cancel my reservation as I got hospitalised and cant travel.

ASSISTANT: Please wait a while I will check and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation found with your name.

USER: Thank you for the response.

ASSISTANT: Thank you.