You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you book a ticket for me? I'm Jessica smith.

ASSISTANT: Sure Smith, let me know your journey details and dates?

USER: I want to travel from DC - IAD to CO - DEN. The departure is on 12/08 and return is on 12/10.

ASSISTANT: Thank you for your information, do you have any limits?

USER: The price limit is 1000. The connection limit is 1.

ASSISTANT: Thank you, I have found a flight for you which matches all your requests.

USER: OK.

ASSISTANT: Flight number is 1013 of Delta airline, can I proceed?

USER: Yes.

ASSISTANT: Thank you for confirmation, your ticket is under process. Please give me a minute.

USER: OK.

ASSISTANT: Thank you for waiting, your ticket has been booked. Hope you have a nice journey.

USER: OK. Thank you for the help.