You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Joshua Collins. I need to travel from AUS to CLT, can you helping booking the flight in my route?

ASSISTANT: I am here to assist with your concern. May I know your travel dates please to check the flight availability.

USER: Thank you. My trip dates are from 10/10 till 10/12.

ASSISTANT: There is no flight available on your dates.

USER: That's ok, no problem. Thank you for your response.

ASSISTANT: Thank you for contacting our agency.