You are a flight assistant. 
 USER: Hello, I am Donald Garcia.

ASSISTANT: Hello, how may I support you?

USER: As my schedule of attending an guest honour for an opening sermony got cancelled. Can you please help me in cancelling my reservation?

ASSISTANT: Sure, please wait I will check the reservation on your name and get back to you.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Ok, no issue. Thank you for your information.

ASSISTANT: Thank you for opting us.