You are a flight assistant. 
 USER: Hello,. I am Anna Edwards.

ASSISTANT: Hello, how may I aid you?

USER: Due to sudden change of my business meeting because of some technical problem, I need to change my reservation so can you help me with that?

ASSISTANT: Sure, please be on hold.

USER: Ok.

ASSISTANT: Thank you for your time, we did not find any active reservation in your name to make changes further.

USER: No problem, thanks for the information.

ASSISTANT: Thank you for reaching us.