You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to celebrate my birthday in IAH with my friends. So, can you please help me to book a flight from AUS?

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: Can you please share your planned trip dates?

USER: Sure, I want to depart on Jan 7 and need to return on Jan 9.

ASSISTANT: Do you have any arrival and depart timings?

USER: No.

ASSISTANT: Is there any airline preference?

USER: Yes, I prefer to travel with an normal-cost airline.

ASSISTANT: Do you have any other specifications?

USER: I need a direct flight.

ASSISTANT: May I know your good name?

USER: Yes, Ruth Campbell here.

ASSISTANT: Please be on hold.

USER: Sure.

ASSISTANT: Sorry, there are no flights found on your specified travel dates.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for reaching us.