You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I have planned for a round trip with my cousins, can you please help me to book my flight ticket from DTW?

ASSISTANT: May I know your dates of journey?

USER: Sure, I want to depart on 11/24 and return on 11/26.

ASSISTANT: Can you share your destination airport code?

USER: My destination is also DTW.

ASSISTANT: There is  a flight with number 1004 in airline Southwest. Can I book it?

USER: You can book it.

ASSISTANT: May I know your name?

USER: My name is Samantha Adams.

ASSISTANT: Your ticket is confirmed,thank you for opting us.

USER: Thank you very much.