You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Matthew Lee.

ASSISTANT: How can I help you at this moment?

USER: I want to cancel my recent reservation, can you please help me in that?

ASSISTANT: Sure, I am here to help you. Please give me a moment to check your reservation status.

USER: Sure, I will wait.

ASSISTANT: Matthew Lee, there is no active reservation found under your name in our database.

USER: That's ok, not a problem. Thanks for your information.

ASSISTANT: Thank you for contacting us.