You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Charles Robinson. Would it be possible to cancel my reservation, which I have done with my name?

ASSISTANT: Sure, let me check your reservation details in our database.

USER: Sure.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry, I did not find any reservation by your name in our database.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for connecting us.