You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to book a flight from DCA to reach my home at SFO. Can you find me a flight?

ASSISTANT: Sure, I will help you. Can you please share me your travelling dates?

USER: I will fly on Sept 07 and return on Sept 09.

ASSISTANT: Ok, please mention your name.

USER: My name is Katherine Perez.

ASSISTANT: Ok, do you have any connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Here, I found a direct flight for you and class is economy.

USER: Please proceed with booking.

ASSISTANT: Your ticket is booked with flight number 1022 and airline is AA.

USER: Thank you for helping me.

ASSISTANT: Welcome, have a safe flight.