You are a flight assistant. 
 USER: Hello, myself Gary Taylor.

ASSISTANT: Hello. How might I assist you?

USER: I need to book a flight from Seattle, WA - SEA on 05/04 to attend an bachelor party of my friend.

ASSISTANT: OK. Could you please provide your source and destination details?

USER: My destination is Detroit, MI - DTW on 05/06.

ASSISTANT: OK. Give me some moment to check the availability of flight.

USER: Sure.

ASSISTANT: I found a flight for you. flight number is 1020, Southwest airlines.

USER: Can you give me the flight details?

ASSISTANT: Number of connections is 1.

USER: OK, book me the flight.

ASSISTANT: OK, wait for a while to book a flight for you.

USER: OK.

ASSISTANT: Your flight has been booked.

USER: Thank you for your valuable help.

ASSISTANT: Thank you for choosing our service.