You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am David Moore. Can you help me to book a ticket from IAH to EWR?

ASSISTANT: Sure, I will help you out. Please provide me your travel dates.

USER: I am planning to start on 10/19 and return back on 10/21.

ASSISTANT: Please wait a moment.

USER: Make sure that connection limit is 1.

ASSISTANT: Here is a flight with 1 connection in UA airlines in economy class. Can I proceed with it?

USER: Yes, you can proceed.

ASSISTANT: Your ticket has been booked with 1021 flight.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.