You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: As my grand parents are very old, they are staying alone in Washington. I want to stay with them. Can you please help me in booking flight ticket from LAX to DCA?

ASSISTANT: Sure, can you share your journey dates?

USER: I will start my journey on Mar 22 and return on Mar 24.

ASSISTANT: Do you have any preferences?

USER: Make sure my return should be in the morning.

ASSISTANT: Do you have any specifications?

USER: I prefer to travel in a connecting flight.

ASSISTANT: There is a connecting flight with number 1005 in airline Delta, the fare is 100 in economy class. Can I book it?

USER: You can reserve it.

ASSISTANT: May I know your name for reserving the ticket?

USER: Please book my flight ticket on name Nicole Williams.

ASSISTANT: Your ticket is reserved, the depart time is 9:00 hours and return time is 5:00 hours.

USER: Thank you for booking.

ASSISTANT: Thank you for opting us.