You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am looking for direct flight for my journey, can you please find out a flight for me?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: Thank you, my boarding is on Nov 15 and please book my return ticket on Nov 17.

ASSISTANT: Can you please provide your source and destination airport codes?

USER: Sure, I want to travel from MCO to AUS.

ASSISTANT: Do you have any class preferences?

USER: No.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: No.

ASSISTANT: Can you please provide your name to proceed further?

USER: Sure, my name is Angela White.

ASSISTANT: Sorry, there are no flights available at your request.

USER: Oh! Sad to hear that. Anyway, I will find another alternative. Thank you for the information.

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

USER: Welcome.