You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Virginia Anderson here. Can you please help me in reserving a flight ticket from LAS to AUS?

ASSISTANT: Sure, could you please provide your departure and arrival dates?

USER: My trip dates are Nov 21 - Nov 23.

ASSISTANT: Are you looking for any preferred connections?

USER: I am looking for a single connection.

ASSISTANT: Do you have any other specifications to be met?

USER: I want to depart at morning time.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your valuable time, unfortunately no flights available on that route.

USER: Not an issue, thank you.

ASSISTANT: Thank you for reaching us.