You are a flight assistant. 
 USER: Hi, I am Dennis Rodriguez.

ASSISTANT: Hello, how may I get through you?

USER: Owing to an emergency I need to cancel my recent reservation, can you help me in cancellation?

ASSISTANT: Sure, I can help you. Let me check the status and revert you.

USER: Ok.

ASSISTANT: There is no reservation found on your name.

USER: That's ok.

ASSISTANT: Thank you for consulting us.

USER: Thank you.