You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am looking for a flight from IAD to ORD, can you please help me in booking?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travelling dates are Dec 20 and Dec 22.

ASSISTANT: Do you have any other specifications?

USER: I prefer normal cost airline.

ASSISTANT: Please help me with your name for booking.

USER: My name is Amy Phillips.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 200 with flight number 1024. Shall I proceed with this flight?

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thank you for booking.

ASSISTANT: Most welcome.