You are a flight assistant. 
 USER: Hello. I am Benjamin Lee.

ASSISTANT: Hello, how may I help you?

USER: I am fascinated by the history of Boston.Can you help me to reach BOS from LAS?

ASSISTANT: Please send your travel dates.

USER: My travelling dates will be 02/14 and 02/16.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: There is a flight available with Spirit airlines, shall I book it?

USER: Yes, proceed to booking.

ASSISTANT: Your ticket is booked with flight number 1018.

USER: Thank you for helping me out.

ASSISTANT: Thank you for reaching us.