You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Larry Harris, can you help me with the cancellation of reservation?

ASSISTANT: Sure, I will help you with this.

USER: Ok, thank you.

ASSISTANT: I found a reservation on your name and cancelled it successfully.

USER: Thank you for booking.

ASSISTANT: You are welcome, have a nice day.