You are a flight assistant. 
 USER: Hi,. I am Sharon Taylor.

ASSISTANT: Hello, how can I aid you?

USER: I need to visit Lyndon Baines Johnson library at Austin. Can you book me a flight ticket?

ASSISTANT: Sure, we would be happy to help you.

USER: Thank you.

ASSISTANT: Can you please help me with the airport code of Austin and your source point?

USER: Austin airport code is AUS, and source is from LGA.

ASSISTANT: Ok, what are your willing dates to travel?

USER: I want to travel on 10/10, and need to catch return flight on 10/12.

ASSISTANT: Ok, do you need any lay by in between your journey?

USER: Yes, I need a lay by.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Thank you for being on hold, sorry to inform you that there is no flight available on your dates.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for reaching us.