You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Please book a flight ticket from LAS to ORD?

ASSISTANT: Can I know your journey dates?

USER: My journey dates are Nov 08 and Nov 10.

ASSISTANT: Do you have any preference?

USER: I need a connecting flight.

ASSISTANT: May I know your name?

USER: I am Nancy Lewis.

ASSISTANT: Found ticket with JetBlue airlines for price 100 having flight number 1004. Shall I book a ticket?

USER: Go ahead.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you.