You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I have done by booking with your agency last week for a client meet in Boston branch but all of sudden client meet got cancelled. So, I am willing to cancel my reservation. Can you please help me with that?

ASSISTANT: Sure, I am glad to help you.

USER: Thank you for considering my request.

ASSISTANT: Please wait for a while.

USER: Sure, I will wait for your response and please check the reservation which I have done with my name Donna Martinez.

ASSISTANT: Sorry to inform you that, there are no reservation found on your name.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for consulting us.