You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I'm Angela Rodriguez. My examination scheduled dates has been postponed.So, I would like to change my recent reservation which is under my name.

ASSISTANT: Sure. Please wait a minute. Angela, there are no active reservations under your name.

USER: Ok, no problem. Thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.