You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I best support you?

USER: Owing an emergence, I want to cancel recent reservation. Can you help me with it?

ASSISTANT: Sure, to proceed with cancelling we need your name.

USER: My name is Lisa Harris.

ASSISTANT: Thank you for waiting, we found a reservation on your name. Shall I proceed with cancelling?

USER: You, can proceed with cancellation.

ASSISTANT: Your ticket has been cancelled.

USER: Thanks for the help.