You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Robert Adams.

ASSISTANT: How can I assist you at this moment?

USER: I would like to cancel my reservation, could you help me out?

ASSISTANT: Sure, I will help you with this. Please be on hold for a moment.

USER: Sure.

ASSISTANT: Robert Adams, I didn't find any active reservation under your name in our database.

USER: That's ok. Thank you for your help.

ASSISTANT: Thank you for utilising our service.