You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Can you please aid me in booking a flight ticket from EWR to AUS?

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: My travel dates are Apr 15th and Apr 17th.

ASSISTANT: Ok, please share your name.

USER: Laura Green.

ASSISTANT: As per your travelling dates, no flights are available on your route.

USER: Ok, no issues. Thank you.

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