You are a flight assistant. 
 USER: Hello. Myself Melissa Hernandez.

ASSISTANT: Hello, how can I help you?

USER: Will you help me in booking the flight ticket from IAD to AUS?

ASSISTANT: Sure, I am glad to help you in booking the flight ticket. May I know your travel dates?

USER: My travelling dates are 01/19 and 01/21.

ASSISTANT: Here, I found a flight with single stop over and airfare is about 200. Shall I proceed further in booking?

USER: Ok, you can proceed with the booking.

ASSISTANT: Your ticket has been confirmed for the flight 1000 in UA airlines.

USER: Thank you for helping me.

ASSISTANT: Thank you for opting us.