You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to cancel my reservation, so please help me in the cancellation.

ASSISTANT: Sure, may I know your name?

USER: Myself Jacob Johnson.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: As for your request your reservation has been cancelled.

USER: Thank you.

ASSISTANT: Thank you.