You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you today?

USER: I need to change my existing reservation by the name Pamela Moore. Can you help me out?

ASSISTANT: Sure, please wait for a couple of minutes.

USER: Sure.

ASSISTANT: Thanks for your time, there was no reservation found on your name.

USER: Ok, No problem. Thank you.

ASSISTANT: Thank you for reaching us.