You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: James Mitchell here.

ASSISTANT: How can I assist you now?

USER: Please book my ticket from DCA to IAD.

ASSISTANT: Sure, I will help you. Can you please share your planned journey dates?

USER: My itinerary dates are Feb 19 and Feb 21.

ASSISTANT: Do you have any specifications?

USER: I need 1 halt in my journey.

ASSISTANT: Give me a minute, I will let you know the flight availability.

USER: Sure.

ASSISTANT: Thank you for your time, there is a flight available with price 200 and single connection in United Airline having 1004 as flight number. May I reserve it?

USER: Please book my ticket.

ASSISTANT: Your ticket has been confirmed in economy class,.

USER: Thank you.

ASSISTANT: Thank you for reaching us.