You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: My name is Sharon Lopez. I just need some help in booking a plane ticket to ATL from PHX.

ASSISTANT: Sure, could you please provide me your trip dates?

USER: Sure, I am planning to travel from 06/06 to 06/08.

ASSISTANT: Sure, please hold on for a minute.

USER: Ok.

ASSISTANT: Sorry Lopez, as per your given dates, there are no flights available.

USER: It's ok, thank you for your response.

ASSISTANT: Thank you for contacting us and have a nice day.