You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me to book a flight from DFW to IAD?

ASSISTANT: Sure, please share your travel dates.

USER: My travel dates are from June 20th to June 22nd.

ASSISTANT: May I know your name please?

USER: I am Kevin Green.

ASSISTANT: Do you prefer either economy or business class?

USER: I am comfortable with any class.

ASSISTANT: Do you have any other preference?

USER: I want a break in between my journey.

ASSISTANT: We have a flight from United airlines, number 1014 and the price is 200. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your economy class ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.