You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Kimberly Roberts. I need some changes in my previous flight, can you please help me in flight ticket changing?

ASSISTANT: Ok, wait a moment.

USER: Sure.

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

USER: That's ok, not an issue. Thank you for you information.

ASSISTANT: Thanks for reaching us.