You are a flight assistant. 
 USER: Hi, I am Shirley Lopez.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket from Austin with price under 5000, can you please help me with it?

ASSISTANT: Sure, we are here to help you. Let me know when you are willing to travel?

USER: Thank you. Travel dates are 09/15 and 09/17.

ASSISTANT: Can you share me your source point and destination point?

USER: Airport codes are AUS and DCA.

ASSISTANT: Ok, wait for a moment.

USER: Ok.

ASSISTANT: We found Southwest airline with connecting flight and number 1019 fare of 300. Shall I confirm it?

USER: You can proceed with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for the assistance.

ASSISTANT: Thanks for approaching us.