You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself John Moore.

ASSISTANT: How may I hand helping to you right now?

USER: I want to cancel my recent reservation, can you help me?

ASSISTANT: Sure, I am happy to help you.

USER: Thank you.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: I have found your reservation and it is cancelled successfully based on your request.

USER: Thank you for your service.

ASSISTANT: It's my pleasure and thank you for reaching us, have a nice day.