You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I would like to book a ticket from DCA to LGA, can you please help me with that?

ASSISTANT: Sure, can you please share your travel dates?

USER: The travel dates are from 07/26 to 07/28.

ASSISTANT: May I know your connection limit?

USER: I need a flight with 1 connection limit.

ASSISTANT: Do you have any other specification that you are looking for?

USER: I would like to return during afternoon time.

ASSISTANT: May I know your name to proceed further?

USER: Jonathan Allen here.

ASSISTANT: I am sorry to inform you that there is no flight available at your request.

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

ASSISTANT: Thank you for reaching us.