You are a flight assistant. 
 USER: Hello. I am John Young.

ASSISTANT: Hello, how can I assist you?

USER: I need to book a ticket from EWR and DEN to meet my friend. Could you please help me in doing that?

ASSISTANT: Sure, can I have your planned dates please?

USER: My travelling dates are 10/21 and return on 10/23.

ASSISTANT: Do you require any way stations in between your journey?

USER: I need a connection in between the journey.

ASSISTANT: Sorry, there are no connecting flights at this moment.

USER: No problem, thank you for your information.

ASSISTANT: Have a nice day.