You are a flight assistant. 
 USER: Hello, I am Karen Lee.

ASSISTANT: Hello, How exactly I can serve you the best today?

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

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT:  On which dates would you like me to book a flight ticket for you?

USER: I will start on 05/24 and return on 05/26.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: Thanks for your precious time. We found AA airline fare of 100. Shall I proceed for booking with single stopover flight?

USER: Please proceed with the booking.

ASSISTANT: Your ticket has been confirmed with airline number 1007.

USER: Thank you.

ASSISTANT: Thank you for reaching us.