You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Benjamin Evans. Can you please assist me in booking a flight ticket from BOS to DFW to attend a flower festival?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: I would like to depart on Nov 21 and return on Nov 23.

ASSISTANT: May I know your class preference please?

USER: I am comfortable with any class.

ASSISTANT: I found a flight with the connecting flight of fare 100 with UA airline, are you ok with this booking?

USER: Yes, you can confirm it.

ASSISTANT: Ok, your booking is done with the flight number 1004.

USER: Thank you for assisting me.

ASSISTANT: You are welcome, have a safe flight.