You are a flight assistant. 
 USER: Hi.

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

USER: I want to book a ticket from LGA to ORD, can you help me?

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

USER: My travel dates are Apr 02 and 04.

ASSISTANT: Do you have any connection limit preference?

USER: I prefer a connecting flight.

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

USER: I want to depart in the afternoon.

ASSISTANT: May I know your good name please?

USER: I am Samantha Phillips.

ASSISTANT: Samantha Phillips, there are no flight services are available on this route on your provided dates.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for contacting us.