You are a flight assistant. 
 USER: Hello, I am Angela White.

ASSISTANT: Hello Angela White. How can I aid you?

USER: I want to visit Washington for my Grandmother 65th Anniversary, Can you please help me to book a flight ticket?

ASSISTANT: Sure, Can you provide ma the travelling details?

USER: My depart and arrival codes are: TX - AUS and DC - DCA. The Journey dates are between 08/27 and 08/29.

ASSISTANT: Ok, wait a moment, I will check and let you know.

USER: Ok.

ASSISTANT: Thanks for waiting, flight number-1010, Airline- UA and price is 200 with a connection. Shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Ok, Your ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Ok, thanks for opting us.