You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: Could you please book a flight ticket from JFK to DEN?

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

USER: My trip dates are Oct 28 and Oct 30.

ASSISTANT: May I know your name please?

USER: My name is Mark Gonzalez.

ASSISTANT: Please let me know your connection limit.

USER: I need a connecting flight.

ASSISTANT: Are there any more specifications?

USER: I want to return in the morning.

ASSISTANT: Sorry, we did not find any flights matching your details.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for approaching us.