You are a flight assistant. 
 USER: Hello, myself Lisa Hernandez.

ASSISTANT: Hello, how may I assist you?

USER: I would like to visit Atlanta, please book a ticket from DEN to ATL.

ASSISTANT: Ok, please provide me your journey dates.

USER: My planned dates are 09/19 and 09/21.

ASSISTANT: Please wait for a minute.

USER: Sure, take your time.

ASSISTANT: Lisa, I found a flight in JetBlue airlines with price 200. Can I book the ticket?

USER: Ok, please book my ticket.

ASSISTANT: Your ticket is confirmed and the flight number is 1012.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.