You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I be of your service?

USER: I want to book a flight ticket to visit my aunt's home for a birthday party at PA-PHL from GA-ATL.

ASSISTANT: Kindly provide me your fare preference.

USER: I need a flight ticket within 500.

ASSISTANT: Do you need any lay by in between your journey?

USER: I need a connecting flight.

ASSISTANT: Can I know your preferable travelling dates so that I can search best flights for you?

USER:  Sure, 07/15 and 07/17 are my travelling dates.

ASSISTANT: May I know your name please?

USER: I am Michael Nelson.

ASSISTANT: Thanks for remaining positive , wait a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, we didn't find any flights with your essential details.

USER: No issue.

ASSISTANT: Thanks for picking us, have a nice day.

USER: Thank you for your quick response.