You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Eric Hall. I am planning to go for an adventure trip in DCA. Can you book me a ticket from DTW?

ASSISTANT: Sure, may I know your travel dates?

USER: I would leave on Feb 27th and return on Feb 29th.

ASSISTANT: At what time do you like depart and return?

USER: I need to return in the afternoon.

ASSISTANT: Do you have any specification?

USER: I prefer an economy class.

ASSISTANT: We found a economy flight on your details with Delta Airlines, flight number: 1013. Shall I book this ticket?

USER: Perfect, please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your prompt service.

ASSISTANT: Thank you.