You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am Matthew Lee, can you help me to cancel my recent reservation?

ASSISTANT: Sure, I will help you with that. Please wait a moment, I will check your previous reservation status.

USER: Sure, take your time.

ASSISTANT: There is no previous reservation available in your name.

USER: That's fine, thank you for your information.

ASSISTANT: Thank you for contacting us, have a nice day.