You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I want to attend campus interview at the University of Texas in Austin,TX - AUS. Can you help me to book a single halt flight?

ASSISTANT: Sure, I am gleeful to help you. Can you please provide your planned trip dates?

USER: I am planning on 08/26 and 08/28.

ASSISTANT: May I know your price limit?

USER: I can afford up to 5000.

ASSISTANT: To proceed for reservation can I know your source point?

USER: My source is at Las Vegas, NV - LAS.

ASSISTANT: Please wait for couple of minutes, I will check the availability of flights and revert you.

USER: Sure, I will wait.

ASSISTANT: We found an airline Southwest available from your origin. Flight number is 1015 with single connection and fare is 300.

USER: I am very glad to travel with airline Southwest. Confirm my seat.

ASSISTANT: Shall I proceed with booking? Ok. Your booking has been processed.

USER: Thanks for your prompt response.

ASSISTANT: Thank you for reaching us. May I know your name?

USER: I am Jeffery Turner.

ASSISTANT: Thank you.

USER: Thank you.