You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I guide you for today?

USER: Please cancel my recent reservation.

ASSISTANT: Ok, can I know your name for checking?

USER: My name is Dorothy Young.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Thank you.

ASSISTANT: Thank you for contacting us.