You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, can you provide me your name?

USER: My name is Jack Robinson.

ASSISTANT: How can I aid you today?

USER: Please cancel recent reservation.

ASSISTANT: Sure, wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, but no reservation found on your name.

USER: Thanks for the assistance.

ASSISTANT: Thank you for choosing us, have a great day.

USER: Thanks.