You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Owing to an emergency I had to request for this cancel reservation.

ASSISTANT: Sure, we are here to help you. May I know your name please?

USER: My name is Karen Rodriguez.

ASSISTANT: Sorry to inform you that there is no active reservation on your given name.

USER: Thank you.

ASSISTANT: Thanks for contacting us.