You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I am Nicole Jones. Can you please help me in changing my recent reservation, which I was reserved in advance.

ASSISTANT: Sure, give me a moment.

USER: Ok, sure take your own time.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for opting us.