You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I render you?

USER: Due to some personal issues, I need to change my previous reservation.

ASSISTANT: Ok.

USER: Can you please change the reservation that I made with name Edward Lopez?

ASSISTANT: Sure. Please, wait.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for availing us.