You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: I am planning to visit Washington, will you help me in booking the flight ticket from EWR to IAD?

ASSISTANT: Sure, please share your trip dates.

USER: My travelling dates are May 11 and May 13.

ASSISTANT: May I know your class preferences?

USER: I am comfortable in any class.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: Myself Donna Green.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I need a flight with single connection.

ASSISTANT: We found a Spirit airline and 1011 is flight number with a fare of 100. Shall I proceed?

USER: Sure, you can proceed with the booking.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you for helping me.

ASSISTANT: Thank you for opting us.