You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I need to cancel my reservation which I have done last week as my schedule got cancelled. Can you help me with that?

ASSISTANT: Sure, we are here to help you.

USER: Thank you for your positive response.

ASSISTANT: May I know your registered name to check the reservation data list?

USER: Sure, I have done my reservation with my name Benjamin Collins.

ASSISTANT: There is no active reservation on your name.

USER: Oh! It might not be booked properly at the time of booking. Anyways thank you for the information.

ASSISTANT: Thank you so much for choosing us.