You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know for what service are you looking for?

USER: I was fallen ill due to which I would like to cancel my reservation. Can you help me?

ASSISTANT: Sure, I will help you with that. May I know your name to check your reservation status?

USER: My name is William Lewis.

ASSISTANT: Lewis, there is no reservation found under your name in our database.

USER: That's fine, anyways, thank you for the information.

ASSISTANT: Thank you so much for reaching us.