You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Can you help me to book a flight ticket from LAX to ORD as there is a art gallery which I have to attend?

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: Ok, please do the booking on the dates Jan 27th and Jan 29th?

ASSISTANT: Do you have any connection limit preference?

USER: Ok, please book a connecting flight.

ASSISTANT: Do you have any other specifications for this trip?

USER: No.

ASSISTANT: May I know your name to proceed further?

USER: My name is Williams Evans.

ASSISTANT: Williams Evans, there are no flight services available on this route with your preferences.

USER: That is ok, thank you for assisting me.

ASSISTANT: Thank you for contacting us.