You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you find me a flight from ORD to BOS?

ASSISTANT: Sure, I am here to help you out. May I know your travel dates please?

USER: I will fly on Feb 04 and return on Feb 06.

ASSISTANT: Can you please share your connection limit?

USER: I prefer a conencting flight.

ASSISTANT: Do you have any other specifications?

USER: I want my return flight in afternoon.

ASSISTANT: May I know your name please?

USER: My name is Anthony Lewis.

ASSISTANT: Anthony Lewis, there are no flights available in your route with your preferences.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for choosing us.