You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Samuel Jackson.

ASSISTANT: How may I assist you?

USER: Can you help me in booking a flight ticket from DCA to SFO?

ASSISTANT: Sure, please help me with your planned journey dates.

USER: I want to travel on 06/11, and need to catch return flight on 06/13.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: I found an economy class ticket in AA airlines with fare 100 and it has single connection. Can I book your ticket?

USER: Proceed with the booking.

ASSISTANT: Ok, your booking is confirmed with flight number 1027.

USER: Thanks for the service.

ASSISTANT: Thank you for reaching us.