You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Can you please help me in booking a flight ticket from Dallas, DFW to Detroit, DTW?

ASSISTANT: Sure, when do you want to start and return on?

USER: My journey dates are from May 16 to May 18.

ASSISTANT: Do you need a connecting flight?

USER: I need a lay by in between journey.

ASSISTANT: Can I know your good name?

USER: My name is Laura Martinez.

ASSISTANT: Thank you for your details, we found a connecting flight 1000 in Hawaiian airline with class economy. Shall I proceed?

USER: Don't proceed for booking, I prefer to travel in business class flight. Thanks for your information.

ASSISTANT: Ok, please wait for a while, I will search for a business class and revert to you.

USER: Sure, take your own time.

ASSISTANT: Thank you for waiting, we found a business class flight which is in Delta airline. Shall I proceed?

USER: Sure, you can proceed for booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your help.

ASSISTANT: Thank you.