You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Could you please book a flight ticket from ORD to IAD?

ASSISTANT: Sure, may I know on which dates you are willing to travel?

USER: I want to travel on Feb 06 and return on Feb 08.

ASSISTANT: Would you like to fly in economy class or business class flight?

USER: I am ok with any class.

ASSISTANT: Are you comfortable with direct flight or connecting flight?

USER: I need a single connecting flight.

ASSISTANT: Do you have any specific time preference please?

USER: I want to depart in the morning.

ASSISTANT: Delta airline is providing a connecting flight of fare 100 with economy class, shall I proceed for booking?

USER: Yes, proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1012.

USER: Thank you.

ASSISTANT: Sure, may I know your good name please?

USER: My name is Sandra Jones.

ASSISTANT: Thank you for reaching us.