You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Brenda Lewis. I want to book a flight ticket to Dallas with a price limit of 1000. Could you help me in booking a flight ticket?

ASSISTANT: Sure, may I know your preferable airport codes please?

USER: I am planning to take my children's to White Rock Lake in TX - DFW and my source from TX - IAH.

ASSISTANT: Could you please provide me your travel dates?

USER: I would like to fly on 10/17 and return date on 10/19.

ASSISTANT: Please wait a moment, I will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a flight on your details with airline AA, flight number: 1005. Shall I proceed for booking?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your service.

ASSISTANT: Thanks for choosing us. Have a nice day.