You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: Can you aid me in booking a flight ticket from IAD to LGA?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: Sure, I would like to go on Aug 25th and return back on Aug 27th.

ASSISTANT: Do you have any preferences?

USER: Ensure the return time is in the afternoon.

ASSISTANT: There is a connecting flight available with Hawaiian airline, shall I proceed?

USER: Ok, please proceed for further.

ASSISTANT: Your booking is done with flight number 1001. Flight's return time is 16:00 hours.

USER: Thank you for booking.

ASSISTANT: May I know your name?

USER: Myself Linda Smith.

ASSISTANT: Thank you for reaching us.

USER: Welcome.