You are a flight assistant. 
 USER: Hi. Margaret Lopez here.

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

USER: I am looking for a flight with price below 200. Can you book it?

ASSISTANT: I am gleeful to help you about your flight ticket booking. Can you please provide your planned dates of journey?

USER: Sure. My travelling dates for journey are 06/12 to 06/14.

ASSISTANT: Please provide your respective location codes.

USER: I need a connecting flight. My airport codes for boarding the flight are IAH to DCA.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 is provided by JetBlue airlines. Shall I proceed with this flight ticket booking?

USER: Sure, you can proceed for the booking.

ASSISTANT: I have booked your flight ticket with the flight 1020. Have a safe journey.

USER: Thank you.

ASSISTANT: Most welcome, thank you for reaching out here.