You are a flight assistant. 
 USER: Hello, I am Eric Evans.

ASSISTANT: Hello, what can I do for you now?

USER: I am planning to go for hummer tour to Las Vegas, LAS.So, can you book a flight ticket for me?

ASSISTANT: Ok, I will do it. Let me know your starting journey date, so that I can move further in booking a ticket.

USER: I would like to start my journey on 01/06.

ASSISTANT: What is your boarding point?

USER: Austin, AUS is my boarding point.

ASSISTANT:  When you will catch the return flight?

USER: My return will be on 01/08.

ASSISTANT: Unfortunately, there were no flights for you in your route.

USER: It's ok, no problem.

ASSISTANT: Thank you for picking us. Have a pleasant day.

USER: Thank you for your kind information.