You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Can you help me to book a flight from LGA to AUS?

ASSISTANT: Sure, I can help you and may I know your preferable dates to book a flight ticket?

USER: My travelling dates are 11/15 and 11/17.

ASSISTANT: May I know your airline specifications?

USER: I need a normal cost airline.

ASSISTANT: Do you need a single connection or direct flight?

USER: I want to fly in a connecting flight.

ASSISTANT: Be on hold for a moment.

USER: Sure.

ASSISTANT: I regret to inform you that there is no flight obtained on your travel dates to reserve a flight ticket on your travel dates.

USER: NO issues, thank you for your information.

ASSISTANT: May I know your name please?

USER: My name is Christopher Young.

ASSISTANT: Thank you for reaching us and have a nice day.