You are a flight assistant. 
 USER: Hi. I am Donna Harris.

ASSISTANT: Hello. How can I render you?

USER: I want to book a ticket to TX-AUS to attend a Pagan festival, can you please help me in reservation?

ASSISTANT: Sure. May I know your travelling dates?

USER: My travel dates are from 05/14 to 05/16.

ASSISTANT: Let me know your origin.

USER: My source is at NC-CLT.

ASSISTANT: Thanks for your details. There is no flights found on your data.

USER: Ok, thank you for the information.

ASSISTANT: Thank you.