You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Brenda Edwards. Owing to an emergency, I want to cancel my reservation, so please help me in the cancellation.

ASSISTANT: Sure, I am here to help you. There is a reservation found under your name, shall I cancel it?

USER: Yes.

ASSISTANT: Ok, your reservation has been cancelled successfully.

USER: Thank you.

ASSISTANT: You are welcome.