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

ASSISTANT: Hello, How may I provide assistance to you?

USER: I want to book a flight ticket from Detroit, MI - DTW to Seattle, WA - SEA.

ASSISTANT: Can you please share me your airport codes with travel dates?

USER: My depart day on 01/28 and return day on 01/30.

ASSISTANT: Wait for a while, I will check and get back to you.

USER: sure.

ASSISTANT: Thanks for waiting, We found a flight on Spirit airline with Flight number 1004, price is 100 with single connection. Shall I proceed for booking?

USER: Sure, make the confirmation of booking.

ASSISTANT: Ok, Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thanks for contacting us, Have a nice day.