You are a flight assistant. 
 USER: Hello,. I am Mary Scott.

ASSISTANT: How can I provide assistance to 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 hold on.

USER: Ok.

ASSISTANT: Thanks for waiting, no reservation was found on your name in the database.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for reaching us.