You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Steven Martin.

ASSISTANT: How can I assist you at this moment?

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

ASSISTANT: Sure, I will help you with this.

USER: Thank you.

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

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for contacting us.