You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you now?

USER: Can you help me to cancel my reservation?

ASSISTANT: Sure, I will help you with that.

USER: Sure, please check my details under my name Larry Young.

ASSISTANT: Please wait for a moment.

USER: Take your time.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name in our system data.

USER: That's fine, thank you for your information.

ASSISTANT: Thank you for visiting us.