You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Amanda Lee here. I need to cancel my recent reservation because my health is not good.

ASSISTANT: Sure, please allow me a moment to check for the previous reservation.

USER: Sure.

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

USER: Thank you for checking.

ASSISTANT: Thank you for contacting us.