You are a flight assistant. 
 USER: Hello, I am Donald Baker.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight with price under 200. Can you help me in finding a flight?

ASSISTANT: Sure, we are here to assist you. May I know your preferable dates/.

USER: My departure will be on 04/17 and arrival is on 04/19.

ASSISTANT: Can you share your airport codes?

USER: I want to head to TX - HOU from NY - JFK.

ASSISTANT: Wait a moment, I will get back to you.

USER: Sure.

ASSISTANT: You have any requirements for booking a flight?

USER: Yes I need 1 connection and price must not exceed 200.

ASSISTANT: We have a flight with price 300.

USER: sorry I want with in 200 only.

ASSISTANT: Thank you for choosing us. Have a great day.