You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I would like to cancel my recent booking due to some health problems,can you help me?

ASSISTANT: Sure, I will help you with the flight cancellation. Can you please provide your name?

USER: My name is Larry Robinson.

ASSISTANT: Hold on for a moment please. Sorry I could not find any reservation on your name.

USER: Ok, no problem with that one.

ASSISTANT: Thanks for approaching us.

USER: Thank you for your quick help.