You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, Good Evening.

USER: Good Evening.

ASSISTANT: What kind of help are you expecting from my side?

USER: I have a seminar to present in Boston, but due to medical emergency, I am unable to present the seminar.

ASSISTANT: That's so sad to hear. Would you like me to cancel your reservation?

USER: Yes, can you help me out?

ASSISTANT: Sure, may I know your name for cancelling the reservation?

USER: My name is Katherine Taylor.

ASSISTANT: Ok Katherine, I found a reservation with your name.

USER: Please proceed with the cancellation.

ASSISTANT: Ok, your reservation has been cancelled successfully.

USER: Thank you for helping me out.

ASSISTANT: Thank you, have a good day.