You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Edward Martin. I would like to book a ticket from DCA to DTW, can you please help me out?

ASSISTANT: Sure, help me with the trip dates?

USER: I am travelling on these dates OCT 6th and 8th.

ASSISTANT: Do you have any preferences?

USER: I prefer economy class.

ASSISTANT: Thank you for your information, there is a flight 1025 with a 1 drop off in Southwest airlines and the fare of the ticket is 100 in an economy class. Is it ok for you to book the ticket?

USER: I am having departure time in the afternoon.

ASSISTANT: This flight is having it's depart time in the afternoon.

USER: Ok, you can proceed.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your services.

ASSISTANT: Thank you for reaching us.