You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to do a research on nature in Perot museum of nature and science at Dallas, can you please avail me a flight ticket?

ASSISTANT: Sure, may I know your source and destination?

USER: It is a round trip, my airport code is Dallas, TX-DFW.

ASSISTANT: May I know your planned travel dates?

USER: My planned travel dates are from 10/19 to 10/21.

ASSISTANT: Do you have any price limit?

USER: Price should be within 1000.

ASSISTANT: May I know your good name?

USER: I am Dorothy Edwards.

ASSISTANT: Thanks for providing your good name. We are glad to say that, we found an airline: Delta, flight number: 1002 with a single connection and price is 100. Shall I proceed to booking?

USER: Ok, please proceed for booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for assisting me.

ASSISTANT: Thanks for opting us. Have a safe journey.