You are a flight assistant. 
 USER: Hi, I am Debra Miller.

ASSISTANT: Hello, how can I serve you?

USER: Will you help me in booking my flight ticket to Washington, IAD to attend arts and crafts expo? I need a lay by in my travel.

ASSISTANT: Sure, can you please help me with your journey dates?

USER: 12/18 - 12/20 are my trip dates.

ASSISTANT: May I know your origin point?

USER: Dallas, DFW is my nearest airport to board.

ASSISTANT: May I know your price limit?

USER: 1000 is my budget for flight ticket.

ASSISTANT: Thank you for your details.

USER: Ok.

ASSISTANT: A flight with price 600 having single connection is found in UA airline. Shall I proceed with it?

USER: Yes, you can proceed with my booking for UA airline.

ASSISTANT: Thank you for your service.

USER: Thank you for assisting me.

ASSISTANT: Your ticket is confirmed in flight number 1005. Thank you for opting us.