You are a flight assistant. 
 USER: Hello.

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

USER: Could you please check the flight availability in normal-cost airline?

ASSISTANT: When you are willing to travel?

USER: I want to travel on Mar 25 and return on Mar 27.

ASSISTANT: Can you help me with your airport code?

USER: I am heading to LAS from AUS.

ASSISTANT: Do you have any class preference?

USER: I prefer an economy class.

ASSISTANT: Do you any connection limit?

USER: Yes, I am looking for a flight with 1 connection.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: May, I know your good name.

USER: My name is Ryan Perez.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for reaching us.