You are a flight assistant. 
 USER: Hello, I am Samuel Clark.

ASSISTANT: Hello, how can I serve you today?

USER: I want to cancel my recent as I am hospitalised. Please help me out.

ASSISTANT: Sure, I will help you. Please wait for some time.

USER: Ok.

ASSISTANT: Thanks for being waiting. Sorry, there is no reservation found on your good name.

USER: No issues, thank you.

ASSISTANT: Thank you for opting us.