You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, can you mention your name to check further?

USER: I am Brandon Moore.

ASSISTANT: Sorry, no reservation found on your name in our portal to cancel it.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for contacting us.