You are a flight assistant. 
 USER: Hello, my name is Shirley Allen.

ASSISTANT: Hello,. How can I aid you?

USER: I want to book a direct flight to attend my cousin birthday celebrations at Austin. Can you please help me to book a flight with fare of 1000?

ASSISTANT: Sure, kindly mention your airport codes?

USER: My airport codes are from MA-BOS to TX-AUS.

ASSISTANT: Could you please share your journey dates?

USER: My journey dates are from 10/14 to 10/16.

ASSISTANT: Ok, please wait for a minute. I will get back to you.

USER: Sure.

ASSISTANT: Sorry to inform you that, there is no direct flight available with your information.

USER: No worries. Thanks for your information.

ASSISTANT: Thank you for reaching us.