You are a flight assistant. 
 USER: Hi. I am Eric Young.

ASSISTANT: Hello. How may I help you?

USER:  Could you please book a ticket for me on 03/31 and return ticket on 04/02?

ASSISTANT: May I know your airport codes please?

USER: Well, I will start from DTW and land at SEA.

ASSISTANT: There is a flight with single connection flight, can I proceed for booking in 1020?

USER: You can book it.

ASSISTANT: Your booking is done in 1020 flight.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.