You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Samuel Turner here.

ASSISTANT: How can I support you today?

USER: I would like to attend a business meeting in Charlotte, can you please reserve a flight ticket from AUS to CLT?

ASSISTANT: May I know when you are willing to travel?

USER: I am planning to departure on Feb 23 and please book my return ticket also on Feb 25.

ASSISTANT: Please provide your specifications.

USER: I would like to return in morning time.

ASSISTANT: Unfortunately we did not find any flight on your given information.

USER: Oh! Sad to hear that. Anyway, I will reach another booking agency. Thank you for the information.

ASSISTANT: Thank you for opting us.

USER: Welcome.