You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Karen Roberts here.

ASSISTANT: In which way I can aid you at this moment?

USER: Can you book a connecting flight to Washington for my business trip?

ASSISTANT: Sure, I can help you with that.

USER: The price limit is less than 1000.

ASSISTANT: Sure, I can aid you with that. Can you please mention your preferable travel dates for booking flight ticket?

USER: My preferable dates for travel are 05/31 to 06/02.

ASSISTANT: May I know your airport code names for further process?

USER: My airport codes for boarding the flight are EWR to IAD.

ASSISTANT: Just hold on a moment, I will check flight availability in this route.

USER: Sure.

ASSISTANT: Based on your information, JetBlue airline is ready to serve you with 1 connection with a minimum fare of 100 is available for you. Shall I proceed with this?

USER: I am ok with the airlines. You can book the flight ticket.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1009.

USER: Thank you.

ASSISTANT: Thank you for contacting us, have a good day.