You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me in booking the flight ticket from LGA to DCA?

ASSISTANT: Sure, please share your journey dates?

USER: My travel dates are May 27 and May 29.

ASSISTANT: Do you have any specifications?

USER: I would like to return in the morning.

ASSISTANT: May I know your good name?

USER: Steven Martinez.

ASSISTANT: Is there any class preference?

USER: I need a single connection flight.

ASSISTANT: Sorry, no flights found on your given details.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for choosing us.