You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Please book me a flight ticket from DTW to ORD?

ASSISTANT: Sure, let me know your planned travel dates.

USER: I will leave on Mar 4th and return on Mar 6th.

ASSISTANT: Kindly mention your requirements?

USER: I need 1 lay by.

ASSISTANT: Please share me your name.

USER: I am Cynthia Campbell.

ASSISTANT: There is a flight found with an American airline of flight 1018 in a business class with single connection.

USER: Fine, please go ahead.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your service.

ASSISTANT: Thank you.