You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you book a ticket for me?

ASSISTANT: Sure, can you specify your travelling details please?

USER: The origin is las vegas, NV - LAS and destination is washington, DC - IAD.

ASSISTANT: OK, please mention the travelling dates?

USER: The departure is on 12/12 and return is on 12/14.

ASSISTANT: I find a ticket for you with connection limit 1.

USER: OK.

ASSISTANT: Flight number is 1024. Airline is UA.

USER: OK.

ASSISTANT: Do you want me to book it?

USER: Yes.

ASSISTANT: OK, may I know your name please?

USER: Edward hernandez.

ASSISTANT: Are you OK with the price limit?

USER: I have a price limit of 500.

ASSISTANT: My price limit is 300.

USER: OK.

ASSISTANT: Thank you. Happy journey.

USER: Thank you for the help.

ASSISTANT: Your ticket as booked.