You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

USER: I have an important seminar to attend, so could you help me to book a  ticket from DCA to BOS.

ASSISTANT: Ok, may I know your connection limit?

USER: I would prefer single connection.

ASSISTANT: May I know your good name?

USER: My name is William Mitchell.

ASSISTANT: What are your travelling dates?

USER: My travel dates are as follows Aug 08 and Aug 10.

ASSISTANT: May I know your class preference?

USER: My class preference is economy.

ASSISTANT: Flight-1004 is available for you with 1 connection with economy class by Delta airlines. Can I book it for you?

USER: Please proceed for booking.

ASSISTANT: Your ticket is reserved, thank you for choosing us.

USER: Thank you.

ASSISTANT: Have a safe journey.