You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Elizabeth King here. I am a politician, I have to meet Donald Trump. So please book my ticket from LAX to DCA.

ASSISTANT: Sure, may I know your travel dates?

USER: My itinerary dates are Apr 18 and Apr 20.

ASSISTANT: At what time do you like to travel?

USER: I want to return in the morning.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Sorry, there is no flight on your details.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.