You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I am Gary Thompson, can you help me to search for a flight with single connection from AUS?

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

USER: My travelling dates are Dec 30 and Jan 01.

ASSISTANT: Could you please help me with destination airport code?

USER: My preferred destination airport code is DCA.

ASSISTANT: Do you have any class preference?

USER: No, I didn't have any class preferences.

ASSISTANT: Gary Thompson, there is a flight available with Delta airline and the connection is 1 with price 300. Would you like me to proceed with the booking?

USER: Proceed with booking.

ASSISTANT: Your booking is confirmed with 1025 flight number.

USER: Thank you.

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