You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am Cynthia Gonzalez. I will fly from AUS to JFK, as I need to attend my business meeting?

ASSISTANT: On which dates you want me to book your ticket?

USER: My travelling dates are 12/26 to 12/28.

ASSISTANT: Based on your request, there is no flight for you. Sorry for the inconvenience.

USER: No issue, thank you.

ASSISTANT: Ok, thanks for approaching us.