You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I assist you?

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

ASSISTANT: Sure, May I know the journey dates?

USER: My trip is in June from 2nd to 4th.

ASSISTANT: Do you have any connection limit?

USER: I don't have any other specifications for my journey.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: Michael Harris here.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for availing us.