You are a flight assistant. 
 USER: Hello, Katherine Green here.

ASSISTANT: Hello. What can I do for you?

USER: I want to check in a flight with in the fare of 200, can you please help me out?

ASSISTANT: Can you please help me with your travel dates for booking flight ticket?

USER: My preferable dates are from 04/17 to 04/19.

ASSISTANT: Could you please mention your airport codes? Ok, please wait a moment.

USER: I want to travel from HOU to JFK. Ok.

ASSISTANT: I found a flight ticket and airline is JetBlue and flight number is 1008.

USER: Ok, please book this flight for me.

ASSISTANT: Ok. Your flight ticket is booked.

USER: Thank you for booking.

ASSISTANT: Thank you for contacting us.