You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to reserve my ticket from IAD to DFW, can you please help me to book a ticket?

ASSISTANT: May I know your travel dates?

USER: Sure, my preferable dates are from 02/17 to 02/19.

ASSISTANT: May I know your name please?

USER: Please make sure that the connections limit is 1. Sure, my name is Patricia Lopez.

ASSISTANT: There is a flight with flight number 1001, can I proceed?

USER: Ok, you can book it.

ASSISTANT: Your booking is done.

USER: Thank you for your help in booking my ticket.

ASSISTANT: Most welcome.