You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I provide assistance to you?

USER: I am Joshua Baker, I am planning to visit casino The Mirage at Las Vegas with my friend. Can you book a flight on 05/26?

ASSISTANT: Sure, may I when do you want to return from Las Vegas?

USER: I will return on 05/28.

ASSISTANT: Can you please mention the airport code of Las Vegas?

USER: My source point is TX-AUS and my destination is NV-LAS.

ASSISTANT: Do you prefer a stopover in between the journey?

USER: Yes, I need a halt in between the journey.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Unfortunately, there were no flights found on your route.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us.