You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you now?

USER: Owing to an emergency, I want to cancel my reservation. Can you please help me with that?

ASSISTANT: May I know your name to check with your previous booking?

USER: I am Carol Thomas.

ASSISTANT: I have found your reservation and cancelled it as per your request.

USER: Thank you.

ASSISTANT: Carol Thomas, thank you for choosing us.