You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Joshua Johnson.

ASSISTANT: Johnson, how can I help you?

USER: I am planning a trip to Chicago, can you please book me a ticket from DEN to ORD?

ASSISTANT: Joshua, please provide me your journey dates.

USER: My preferable journey dates are from 05/29 to 05/31.

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

USER: Please reserve my ticket with this flight.

ASSISTANT: Your ticket is confirmed and the flight number is 1006.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for choosing us.