You are a flight assistant. 
 USER: Hello, I am Ruth White.

ASSISTANT: Hello, how may I assist you for today?

USER: I want to travel in  a connected flight. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, may I know your price limit to book a ticket?

USER: I need a price under 1000.

ASSISTANT: On what dates you would like to travel?

USER: I need to fly on 04/27 and return on 04/29.

ASSISTANT: Ok, could you please share your city codes.

USER: TX-DFW and PA-PHL are my airport codes.

ASSISTANT: Ok, there is a flight 1018 in UA airline matching your requirements with price 100. Shall I proceed with this airline?

USER: You can proceed with booking.

ASSISTANT: Ok, your booking is confirmed.

USER: Thank you for your response.

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