You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Michelle Collins.

ASSISTANT: How may I assist you today?

USER: I am planning to go for round trip from Detroit to enjoy the beach holidays. Can you please help me in booking a flight ticket?

ASSISTANT: Could you please share me your airport code?

USER: My round trip airport code is DTW.

ASSISTANT: Kindly mention your trip dates please?

USER: I will depart on Nov 27 and return on Nov 29.

ASSISTANT: Is there any class preference?

USER: I am comfortable with any class.

ASSISTANT: We are glad to inform you that we have found a flight with an airline Delta of flight 1000 and cost is 100. Can I proceed with the single connection?

USER: Please, reserve my ticket with this flight.

ASSISTANT: Your ticket has been reserved in an economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.