You are a flight assistant. 
 USER: Hello, Brandon Hall here.

ASSISTANT: Hello, how may I help you?

USER: I need to cancel my recent booking due to unfortunate reasons.

ASSISTANT: Sure, let me check your reservation status in our database.

USER: Thank you.

ASSISTANT: Sorry to intimate, no reservation is found with your criteria.

USER: That's fine, thanks for your time.

ASSISTANT: Thank you very much for reaching us.