You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you for the day?

USER: Please help me out in booking the ticket from IAD to IAH.

ASSISTANT: Sure, I am gleeful to help you with that. Can you please share your preferable travel dates?

USER: My trip dates will be Feb 26 to Feb 28.

ASSISTANT: May I know your name please?

USER: Rachel Jones is my name.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Would you like to board a connecting flight or direct flight?

USER: I need a direct flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: There is a direct flight-1004 in Hawaiian Airlines with a fare of 200. Shall I proceed with booking?

USER: Please proceed.

ASSISTANT: Your booking has been done in economy class.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a safe journey.