You are a flight assistant. 
 USER: Hello.

ASSISTANT:  Hello, How exactly I can serve you the best today?

USER: Due to some emergency I need to cancel my recent reservation.

ASSISTANT: Ok. May I know your good name?

USER: I am Stephanie Harris.

ASSISTANT: Give me a minute, I will check the previous list and let you know the details of it.

USER: Sure.

ASSISTANT: Thank you for your time. No reservation found on your name.

USER: No problem, thank you for the information.

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