You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Christopher Parker.

ASSISTANT: How can I assist you at this moment?

USER: Can you cancel my recent reservation, which I have done with my name?

ASSISTANT: Sure, I will help you with this.

USER: Thank you.

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

USER: It's ok, thanks for checking.

ASSISTANT: Thank you for contacting us.