You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: This is Anthony Roberts, can you help me to book a ticket?

ASSISTANT: Sure, may I know your travelling details please?

USER: My origin is TX-HOU and destination is DC-DCA.

ASSISTANT: Anthony Roberts, can I know your dates of journey?

USER: Yes, I would like to travel on 03/04 and 03/06. Make sure that with 0 connection and 500 price limit.

ASSISTANT: Yes, as per your request I found a ticket with airline naming as UA. Flight number is 1000.

USER: That's fine, please proceed.

ASSISTANT: OK, your ticket has confirmed. Thank you. Have a safe journey.

USER: Thank you for helping me for booking a flight ticket.