You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you for the day?

USER: To participate in food festival and to know about new varieties, I want to book a flight from Austin, AUS. Will you book a ticket on 03/06?

ASSISTANT: Sure, may I know where would you like to travel?

USER: I have to travel to Denver, DEN.

ASSISTANT: On what date you will be return from Austin?

USER: I will return on 03/08. I want a stopover in between my journey.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, There is no flights available that matches your requirements. For documentation purpose, may I know your name please?

USER: I am Linda Mitchell, Thanks for sharing the information.

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