You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Patricia Walker. I am trying to make a flight ticket from Las Vegas to  reach Washington. Can you please help me with this?

ASSISTANT: Sure, can you please share your travel dates?

USER: My travelling dates are 05/30 and 06/01.

ASSISTANT: Could you please help me with the airport codes?

USER: The source and destination airport code are LAS and IAD.

ASSISTANT: Let me check for the availability of flight.

USER: Ok, take your time for checking.

ASSISTANT: Patricia, there is a flight available with price 100 and the connection is 1 with Spirit airline. Would you like me to proceed with the booking?

USER: That's fine, please confirm my flight ticket.

ASSISTANT: Your booking is confirmed with the 1001 flight number.

USER: Thank you for helping me in ticket booking.

ASSISTANT: You are welcome. Thank you for reaching us.