You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am Nicole Campbell. Can you help me in changing my recent reservation?

ASSISTANT: I am here to help you with that Nicole Campbell.

USER: Thank you.

ASSISTANT: I regret to say this Nicole Campbell, there is no active reservation with your name.

USER: Its ok, thank you.

ASSISTANT: You are welcome, thank you for reaching us.