You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Actually, I made a earlier reservation to go for a trip with my friends, but heavy work load in office. I want to change my reservation. Can you please help me in this?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: Let me know your name please.

USER: Myself Nicole Martin.

ASSISTANT: Please wait for a while.

USER: Sure, take your own time.

ASSISTANT: Sorry Nicole, there is no active reservation found with your name.

USER: That's fine, thank you for checking.

ASSISTANT: My pleasure.