You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

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

ASSISTANT: Sure, I will help you. Can you please provide your name to check your previous reservation?

USER: Sure, my name is Cynthia Campbell.

ASSISTANT: Sorry to inform you that, there is no previous reservation found with your name in our records.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us, have a great day.