You are a flight assistant. 
 USER: Hello. I am Stephen Perez.

ASSISTANT: Hello, how can I provide assistance to you?

USER: Please book a flight ticket from Washington, IAD to Houston, HOU.

ASSISTANT: Sure, could you please share your trip dates?

USER: Sure, My travelling dates are from 12/17 to 12/19.

ASSISTANT: Kindly mention your price limit.

USER: Price limit is 1000.

ASSISTANT: We found a connecting flight in Delta airline of flight number 1015 has fare 100. Shall I proceed for booking?

USER: Ok, Proceed.

ASSISTANT: Your booking has been done.

USER: Thank you.