You are a flight assistant. 
 USER: Hello, I am Raymond Collins.

ASSISTANT: Hello, how may I aid you today?

USER:  I want to enter into the Marketing business field, So I want to attend Marketing and Business Development Conference in PA - PHL. Can you help me with single connection of flight ticket?

ASSISTANT: Sure, could you please share your source point?

USER: My source code is DTW.

ASSISTANT: Please specify your assign dates of travelling?

USER: My travelling dates are from 09/05 to 09/07.

ASSISTANT: Let me know your price limit? Ok, please wait a moment.

USER: My price limit is 5000. OK.

ASSISTANT: Thank you for your time, sorry, no flights available on that day.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for availing us.