You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you out?

USER: I am Ronald Young. I planned to attend for a wedding in PHL, can you please help me to book a flight ticket from DCA?

ASSISTANT: Sure, I am here to help you. Please provide me your trip dates.

USER: I prefer to travel on 06/27 and 06/29.

ASSISTANT: Here is a flight with 1 stop and price is 100 in 1025 Delta airlines, can I proceed with it?

USER: Ok, please confirm my booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.