You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: Paul Gonzalez here. Can you please help me in cancelling my reservation?

ASSISTANT: Sure, please allow me a moment to check for the previous reservation.

USER: Sure, take your time.

ASSISTANT: Paul, there is no reservation found under your name.

USER: That's ok, may be my friend has cancelled that already. Thank you for your service.

ASSISTANT: You are welcome. Thank you for contacting us.