You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Jacob Taylor here. I am a politician, I have to meet Donald Trump. So please book my ticket from LGA to DCA.

ASSISTANT: Sure, may I know our travelling dates?

USER: My itinerary dates are Oct 9 and Oct 11.

ASSISTANT: Do you have any class preference?

USER: No, I want to return in the afternoon.

ASSISTANT: Can I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Sorry to say, there are no flights available on your request.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.