You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: Please book a flight ticket from LGA to IAD?

ASSISTANT: When you are willing to travel?

USER: My journey dates are Aug 15 and Aug 17.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: May, I know your good name?

USER: Please make sure that I prefer a return flight time at morning. I am Jonathan Hall.

ASSISTANT: We found 1009 Spirit airlines with single connection with price 200. Shall I proceed with the booking?

USER: Go ahead.

ASSISTANT: Your, booking has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.