You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: Please help me to change my active reservation as my meeting was postponed.

ASSISTANT: Sure, I will help you.

USER: Myself Debra Lopez.

ASSISTANT: Ok, Please wait.

USER: Ok.

ASSISTANT: Thanks for waiting. There is no active reservation on your name.

USER: Ok, no problem. Thank you so much.

ASSISTANT: Thank you.