You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am planning to travel from IAD to CLT. Can you please help me to book a ticket?

ASSISTANT: May I know your travelling dates?

USER: My travelling dates will be on Dec 22 to Dec 24.

ASSISTANT: Do you have any requirements?

USER: I need a connecting flight.

ASSISTANT: May I know your name?

USER: Stephen Miller here.

ASSISTANT: I have searched a flight ticket with fare 100 and 1001 as flight number. Shall I proceed with booking?

USER: You can proceed.

ASSISTANT: Your ticket is confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for reaching us.