You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I am Donald Taylor, want to cancel my reservation. Please help me out with that.

ASSISTANT: Sure, I will help you with that. Please wait a moment, I will check your reservation status.

USER: Sure, take your time.

ASSISTANT: I have found your reservation and cancelled successfully.

USER: That's great, thank you for your valuable time.

ASSISTANT: You are welcome Donald Taylor.