You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I have to cancel my ticket booking due to some health problems, can you help me in cancelling the ticket?

ASSISTANT: Sure, I will help you. May I know your name?

USER: Sure, my name is Benjamin Young.

ASSISTANT: Happy to say this, I found your reservation and it is successfully cancelled.

USER: Ok, thank you for cancelling my flight ticket booking.

ASSISTANT: Welcome. Thank you for reaching us.