You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: Myself Jonathan Moore, due to some client meeting. Can you please help me in cancelling the reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait for your kind response.

ASSISTANT: Sorry, we found no reservation on your given dates.

USER: Not a big deal, anyway thank you very much for your service.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.