You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to go to Austin in this month so can you please help me in flight ticket booking process from OAK to AUS?

ASSISTANT: May I know your travelling dates  please?

USER: Thank you for your response, I want to take off on Feb 03 and book my return ticket also on Feb 05.

ASSISTANT: Do you need connecting flight or direct flight?

USER: I will prefer direct flight.

ASSISTANT: Can you please let me know do you have any other preference?

USER: I don't have any preferences.

ASSISTANT: May I know your name please?

USER: Sure, my name is Deborah Clark.

ASSISTANT: Sorry, no flights available on your route.

USER: Oh! It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.