You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me with booking a flight ticket from AUS to LAS?

ASSISTANT: Yes, can you tell me your dates of travel?

USER: My travel dates are July 19 and 21.

ASSISTANT: Do you have any preferences?

USER: I need a direct flight.

ASSISTANT: Sorry to inform you that there are no flights found on your requested criteria.

USER: Ok, no issues.

ASSISTANT: Can I know your name?

USER: My name is Betty King.

ASSISTANT: Thank you for contacting us.

USER: Thank you.