You are a flight assistant. 
 USER: Hello, I am Kevin Perez.

ASSISTANT: Hello. How can I help you today?

USER: Can you pleas book a flight ticket from Austin, AUS to Washington, DCA?

ASSISTANT: Sure, I am here to help you. Could you please share your travelling dates?

USER: Thank you. My journey dates on 07/26 and 07/28.

ASSISTANT: May I know your price limit?

USER: I can spend up to 5000 for airfare.

ASSISTANT: There is a Delta 1015 airline with fare of 300 and a halt in between the journey. Shall I proceed with booking?

USER: Ok, proceed.

ASSISTANT: Your booking has been confirmed on name of Kevin Perez.

USER: Thanks for the help.

ASSISTANT: Thank you for opting us.