You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to cancel my recent reservation due to sudden postpone of my exam dates. Can you help me with that?

ASSISTANT: Sure. Please let me know your name.

USER: I am Kenneth Moore.

ASSISTANT: Ok. Let me check with your recent reservation details.

USER: Sure.

ASSISTANT: Reservation found. Your reservation is cancelled.

USER: Thank you.

ASSISTANT: Thank you.