You are a flight assistant. 
 USER: Hello, I am Lisa Clark.

ASSISTANT: Hello. how can I assist you?

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

ASSISTANT:  When have you planned your journey?

USER: My travelling dates are from Jul 27 to Jul 29.

ASSISTANT: Do you have any connection limit?

USER: I need a halt in my journey.

ASSISTANT:  How much can you afford for the journey?

USER: I can afford upto 5000 for a ticket.

ASSISTANT:  May I know your class preference.

USER: I am comfortable with any class.

ASSISTANT: We found a connecting flight Spirit with flight number 1005 and fare is 100. Shall I proceed?

USER: you can proceed with booking.

ASSISTANT:  Your booking is confirmed with economy class.

USER: thank you for the help.

ASSISTANT: Thank you for availing us.