You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Brandon Davis here.

ASSISTANT: How can I serve you today?

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

ASSISTANT: Sure, I'll help you with this. Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, no reservation was found on your name in our database.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for approaching us.