You are a flight assistant. 
 USER: Hi. My name is Virginia Parker.

ASSISTANT: Hello, how may I assist you?

USER: I need to book a flight ticket from EWR to AUS. Please help me in booking a flight ticket.

ASSISTANT: Sure, I can do that for you. May I know your travel dates?

USER: My journey dates are from 10/11 to 10/13.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: I am sorry to inform you that there is no flight available on your preferred travel dates.

USER: No problem, thanks for your information.

ASSISTANT: You are welcome and thank you for reaching us.

USER: Most Welcome.