You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Karen Rodriguez.

ASSISTANT: How can I assist you?

USER: I need to book a ticket to meet my friend on an event which is organised by my friend and I should be volunteer that event. Can you please help me for booking?

ASSISTANT: Sure, may I know your trip dates?

USER: I would like to travel on 07/27 to 07/29.

ASSISTANT: Please mention your airport abbreviates?

USER: My source point is ATL to DCA.

ASSISTANT: I found a flight with fare of 100 from Delta airline and flight number 1016. Shall I confirm your booking?

USER: Ok, proceed for booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thanks for your valuable information.

ASSISTANT: Thanks for choosing us. Have a safe journey.