You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Please help me to cancel my recent reservation.

ASSISTANT: Sure, I am happy to serve you with the ticket cancellation. Can I know your name please?

USER: Andrew Robinson.

ASSISTANT: Ok, please allow me sometime to check the ticket status.

USER: Sure.

ASSISTANT: I regret to intimate you, there is no reservation with your name in our system data to cancel the ticket.

USER: Thank you.

ASSISTANT: It's my pleasure. Thank you for consulting us.