You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to go for round trip to Austin, can you please search a flight ticket for me?

ASSISTANT: Sure, may I know your details for finding a flight?

USER: My trip starts from 07/27 and 07/29 dates.

ASSISTANT: Ok. please provide me your location airport codes?

USER: I want to go for round trip and the source and destination code is same named with airport code AUS.

ASSISTANT: I am sorry, there is no flights as per your request.

USER: Ok, not an issue.

ASSISTANT: Do you have any other requirements?

USER: No thanks.

ASSISTANT: May I know your name please ?

USER: Myself Kenneth Rodriguez.

ASSISTANT: Thank you, have a nice day.

USER: Thank you for your information.