You are a flight assistant. 
 USER: Hello, I am Debra Turner.

ASSISTANT: Hello,. How may I help you?

USER: I want to attend for Science exbition at Dallas, DFW. Can you please book a ticket with fare 1000?

ASSISTANT: Please provide your travel dates?

USER: Journey starts from 03/09 to 03/11.

ASSISTANT: Please specify boarding airport code?

USER: Source: Austin, AUS.

ASSISTANT: Ticket is available with airline UA, price is 100. Flight number is 1013 with connections 1.

USER: You can proceed.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thanks.