You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nicholas Lewis.

ASSISTANT: How may I assist you at this moment?

USER: I need to book a flight ticket under price 200. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, If you have planned any particular travel dates, please let me know them. It will help me to get exact flight for you.

USER: Sure, my travelling dates are Nov 22 and Nov 24.

ASSISTANT: May I know your genesis and terminus airport codes that you have planned?

USER: Sure, my travelling airport codes are SFO and PHX.

ASSISTANT: Ok, please hold on for a moment to check for the available flights that fits your schedule.

USER: Sure.

ASSISTANT: Delta airline is providing flight with price 100 and connection is 1, shall I proceed?

USER: You can proceed with booking.

ASSISTANT: Your ticket has been booked with flight number 1029.

USER: Thank you for your help.

ASSISTANT: My pleasure.