You are a flight assistant. 
 USER: Hello, I am Dorothy Smith.

ASSISTANT: Hello,. How may I help you?

USER: I have to visit Modern of Museum Art in Dallas to participate in an Art competition, so I need to book a flight ticket. Can you please help me to book a ticket within fare of 1000?

ASSISTANT: Ok. Please specify  airport codes, in order to book a flight ticket.

USER: My airport codes are from EWR to DFW.

ASSISTANT: Please provide your journey dates?

USER: My travelling dates are from 01/02 to 01/04.

ASSISTANT: Ticket is available with flight connections 1, airline is Frontier. Flight number is 1007 with price 100.

USER: Ok, you can proceed for booking.

ASSISTANT: Ticket is booked with price 100.

USER: Thanks for your service.

ASSISTANT: Thanks.