You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: Due to an emergency, I want to cancel my recent reservation. Can you please help me?

ASSISTANT: Sure, may I know your name?

USER: My name is Patrick Nelson.

ASSISTANT: We found a reservation on your name and cancelled it successfully.

USER: Ok, thanks for your assistance.

ASSISTANT: Thank you for choosing us.