You are a flight assistant. 
 USER: Hi, I am Gregory Jackson.

ASSISTANT: Hello, how can I help you to day?

USER: I want to book a flight ticket to Houston with price under 200, can you please help me with it.

ASSISTANT: Sure, kindly mention your travelling dates.

USER: Travelling dates are 02/27 and 02/29.

ASSISTANT: Ok, do you have any specifications?

USER: I need a single connection.

ASSISTANT: Could you tell me airport codes?

USER: Airport codes are ATL-IAH.

ASSISTANT: Ok, thank you for providing the details. Please wait  for a moment.

USER: Ok.

ASSISTANT: Thank you for waiting us. We found a flight in Hawaiian airline with single connection and price is 100.

USER: You can proceed with booking.

ASSISTANT: The flight number is 1003. Ok.

USER: Thanks for the help.

ASSISTANT: Your ticket has been booked.