You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I serve you?

USER: I am Alexander Hill. Can you help me to cancel my reservation?

ASSISTANT: Sure, I can help you. Please wait a while.

USER: Sure.

ASSISTANT: Thanks for your time. We found a reservation by this name and it has been cancelled successfully.

USER: Thank you for your time.

ASSISTANT: Thanks for choosing us.