You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what kind of help are you expecting from our booking agency?

USER: Me and my friends planned to visit Austin for fishing. Can you please help me in booking a flight ticket?

ASSISTANT: Sure, can you please provide your travelling airport codes?

USER: My travelling airport codes are JFK - AUS.

ASSISTANT: Please can I know your travelling dates for further process?

USER: Ok, 09/06 and 09/08 are my travelling dates.

ASSISTANT: May I know your good name please?

USER: Christine Hernandez is my name.

ASSISTANT: Thank you for providing information. I am very sorry to inform you that there were no flights available during your visiting time.

USER: Ok, no worries.

ASSISTANT: Thank you for availing us.

USER: Thanks for your service.