You are a flight assistant. 
 USER: Hello. I am Linda Williams.

ASSISTANT: Hello, how can I aid you right now?

USER: I planned to travel from DFW to DCA, can you please help me to book a flight ticket?

ASSISTANT: Sure, I am beatific to help you.Could you please share your departure and arrival day?

USER: I prefer to travel on 09/21 and 09/23. I need a direct flight.

ASSISTANT: The UA airline with flight number 1023 is available having fare as 100 and connection as 0.

USER: Ok, please confirm my booking.

ASSISTANT: Alright, your seat is reserved.

USER: Thank you for your help.

ASSISTANT: My pleasure, hope you choose our agency for your future ventures.