You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your concerns?

USER: I am Mary White, I need to modify my reservation to normal cost airlines. Can you help me about that?

ASSISTANT: Ok, please wait a moment.

USER: Sure, I will be waiting for your response.

ASSISTANT: Thank you for waiting, there are no reservation been found on your name to change.

USER: Oh! It might be done with another agency actually it was done by manager. Anyways thank you for the information.

ASSISTANT: Thank you for connecting with our agency.