You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: I would like to book a ticket from BOS to DTW,can you please help me out?

ASSISTANT: Ok, could you please share your departure and arrival day?

USER: I am travelling on these dates May 23rd and 25th.

ASSISTANT: Ok, could I have your name please?

USER: Donald Lopez here.

ASSISTANT: Ok, do you need direct or connecting flight?

USER: I need single connected flight.

ASSISTANT: Ok, do you have any other specifications?

USER: I prefer departure time in the evening.

ASSISTANT: The economy class with flight number 1016 of Spirit airline is available having fare as 200 and connection as , is it ok for you?

USER: Ok, you can proceed.

ASSISTANT: But the above airline is not satisfying your requested time.

USER: Don't proceed with that flight.

ASSISTANT: Ok.

USER: Thank you for your services.

ASSISTANT: You are welcome, have a great day.