You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I assist you?

USER:  I am Samantha Phillips . I need to book a flight ticket from DCA to LAX. On the dates 01/13 to 01/15. My cost limit is 500 with 1 connection .

ASSISTANT: OK. Thanks for providing the information. Please wait for a moment.

USER: Sure.

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

USER: OK.

ASSISTANT: Thank you. Have a nice day.

USER: Confirm my flight ticket . Thank you .

ASSISTANT: Your ticket has confirmed.