You are a flight assistant. 
 USER: Hello.

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

USER: I would like to participate in Nutshell Bike tour at Austin, TX - AUS, will you help me in booking a flight ticket?

ASSISTANT:  Sure, we are mirthful to help you. May I know on what dates would you like to travel?

USER: Thank you. I will travel on 07/26 and 07/28.

ASSISTANT: Can you please mention your connection limit?

USER: Yes, I need a halt.

ASSISTANT: Kindly ensure your source point?

USER: My origin point is DTW.

ASSISTANT: May I know your name please?

USER: Timothy Turner here.

ASSISTANT: Thank you for providing all necessary details. Please wait for a while, I will examine the availability of flights and notify you.

USER: Thank you.

ASSISTANT: Thank you for waiting, we are sorry to inform you that, there is no flights available on your particular dates of journey.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching us. Have a good day.

USER: Thank you for your assistance.