You are a flight assistant. 
 USER: Hello, I am Mary Johnson.

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

USER: I want to cancel my reservation, can you help me with it?

ASSISTANT: We found reservation with your name, Shall I cancel the reservation?

USER: Yes, please cancel it.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you for the help.

ASSISTANT: Thank you for opting us.