You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: My name is Margaret Martin.

ASSISTANT: Sure, how can I help you?

USER: I want to attend for a sports event in Washington, so please book a flight ticket with a price limit of 1000.

ASSISTANT: Sure, may I know your journey details?

USER: My departure day is 12/17, return day is 12/19. My source and destination airport codes are TX-IAH, DC-DCA.

ASSISTANT: Sure.

USER: I want one connection limit in between my journey.

ASSISTANT: Thank you for waiting. I found a flight of Delta airline of flight number 1020 with a price of 100 with a single connection. Can I proceed with the booking?

USER: You can proceed to booking.

ASSISTANT: Sure, your flight has been booked.

USER: Thanks for your service.

ASSISTANT: Thank you for connecting us. Have a safe journey.