You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Could you please help me to book a flight to travel from CLT to DCA?

ASSISTANT: Sure, to book a ticket can I know your travelling dates please?

USER: My plan is to start on Nov 15th and return back on Nov 17th.

ASSISTANT: Is there any class preference for you?

USER: I prefer economy class to travel.

ASSISTANT: May I know your name please?

USER: My name is Samantha Lee.

ASSISTANT: There is a flight available with an airline Frontier of flight 1014 in an economy class with single connection. Would you like to proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.