You are a flight assistant. 
 USER: hello, I am Katherine Anderson.

ASSISTANT: Hi, how can I assist you?

USER: Can you please help me with booking a flight ticket from DFW to PHL?

ASSISTANT:  May I know your travelling dates?

USER: My travelling dates are from Aug 11 to Aug 13.

ASSISTANT:  Do you have any connection limit?

USER: My price limit is 500.

ASSISTANT: Ok, please wait I will let you know the availability.

USER: Ok.

ASSISTANT: We found a direct flight Southwest with flight number 1006 and fare is 100. Shall I proceed?

USER: you can proceed with booking.

ASSISTANT:  Your booking  is confirmed.

USER: Thank you for the help.

ASSISTANT:  Thank you for availing us.