You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Owing to an emergency I want to cancel my reservation, can you help me?

ASSISTANT: Sure, we are glad to help you. Can you please let me know your good name?

USER: I am Rachel Williams.

ASSISTANT: Sorry, there is no active reservation on your name in our data.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for opting us.