You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: My name is Margaret White. I want to book a flight ticket with a price limit of 1000 for attending a science festivals in Houston.

ASSISTANT: Sure, may I know your travelling dates?

USER: My departure day is 06/29, return day is 07/01.

ASSISTANT: Can you please share your source and destination codes?

USER: My source and destination airport codes are DC-IAD, TX-HOU. I want one connection in between my journey.

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

USER: Ok.

ASSISTANT: Thanks for waiting, we found an airline: AA, flight number: 1020 with a single connection and price is 200.

USER: You can proceed to booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thanks for choosing us.