You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My name is Michelle Edwards. I would like to change my reservation, could you help me out?

ASSISTANT: Sure, please wait a moment.

USER: Ok.

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

USER: That's ok. Thank you.

ASSISTANT: Thank you for reaching us.