You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. What can I do for you now?

USER: Please book a ticket from Detroit, MI-DTW to Seattle, WA-SEA, for culture, heritage and folk festivals.

ASSISTANT: Ok. Please help me with your name to book a ticket.

USER: My name is Alexander Lee.

ASSISTANT: In which dates you are willing to travel?

USER: Departure will be 08/19 and return is by 08/21.

ASSISTANT: Thanks for waiting. You have a Frontier airline of price 100 with 1 connection. In 1018 flight. May I book a ticket?

USER: Please book a ticket.

ASSISTANT: Booking has been done.

USER: Thanks.

ASSISTANT: Thank you.