You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Christopher Jackson.

ASSISTANT: How can I assist you at this moment?

USER: My holiday trip has been cancelled. So, I would like to cancel my reservation which is under my name. Can you please help me with that?

ASSISTANT: Sure, I will help you with this.

USER: Thank you.

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

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for contacting us.

USER: You are welcome.