You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Can you please book me a ticket for flight which departs in the evening?

ASSISTANT: Let me know your airport codes.

USER: My airport codes are from JFK to DTW.

ASSISTANT: Can I know your travel dates?

USER: My travel dates are from Sept 15th to Sept 17th.

ASSISTANT: Do you have any preference?

USER: Yes, I want a direct flight.

ASSISTANT: Can I know your name?

USER: I am Carol Allen.

ASSISTANT: Found ticket with airline Frontier for price 100 having flight number 1005.

USER: May I know when it departs?

ASSISTANT: Departs in the evening.

USER: Ok, please proceed.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.