You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I want to cancel my reservation because I met with an accident. Can you please help me?

ASSISTANT: Sure, may I know your name please?

USER: My name is Benjamin Taylor.

ASSISTANT: There is a no reservation on your name in our database.

USER: No problem, thank you for checking.

ASSISTANT: Thank you for your choosing us.