You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I would like to spend my weekend at Las Vegas, please help me in booking a ticket from ORD to LAS.

ASSISTANT: Sure, let me know your travelling dates.

USER: My planned travel dates are on June 19 and June 21.

ASSISTANT: Please share your connection limit.

USER: No more preferences, please find the availability of flights.

ASSISTANT: May I know your name?

USER: My name is Ryan Adams.

ASSISTANT: We found an Delta airlines with single connection and flight number is 1014. Shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you.