You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me in booking a flight ticket from Charlotte, CLT to Washington, IAD?

ASSISTANT: Yes, can you tell me your travelling dates?

USER: My journey dates are from Jan 20 to Jan 22.

ASSISTANT: Do you have any other specifications?

USER: I need a flag stop in between journey.

ASSISTANT: Do you have any preferences?

USER: No, thanks for asking.

ASSISTANT: I have found a flight ticket with a price of 100 and 1 connection.

USER: Sure, you can proceed for booking.

ASSISTANT: Can I know your name for booking?

USER: My name is John Anderson.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thank you for reaching us.