You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: My name is Shirley Thomas. I have an event to attend at Philadelphia. Can you help me in booking a ticket from ATL to PHL?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My preferred trip dates are 07/08 and 07/10.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Sure.

ASSISTANT: Sorry, there is no flights available on your requested route.

USER: Its ok, thank you for the information.

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