You are a flight assistant. 
 USER: Hello. Myself Ashley Smith.

ASSISTANT: Hello, how may I help you today?

USER: I need to travel Houston, can you please reserve flight ticket from AUS and IAH?

ASSISTANT: Sure, may I know your planned trip dates?

USER: My travelling dates are Mar,19 and Mar,21.

ASSISTANT: Do you need stop over in between journey?

USER: Yes, I need a stop over in my journey.

ASSISTANT: Do you have any airline preferences?

USER: No, I don't have any airline preference.

ASSISTANT: Do you have any specifications?

USER: My depart time should be in the afternoon.

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

USER: That's ok, I will choose any other source to travel my destination.

ASSISTANT: Thank you for opting us.