You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Dorothy Roberts. I want to cancel my recent reservation, can you please help me with that?

ASSISTANT: Sure, I will help you with that. Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for being patient, we found a reservation on your name. Shall I cancel it?

USER: Yes.

ASSISTANT: Your flight ticket  has been cancelled successfully.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.