You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I support you today?

USER: I am Eric Williams. I need your help in booking my flight ticket from CLT to AUS. Please do that for me.

ASSISTANT: Sure, we are here to make your journey comfort.

USER: Thank you.

ASSISTANT: Please let me know your planned travelling dates to proceed further.

USER: I would like to depart on Apr 27th and also please book my return ticket on Apr 29th.

ASSISTANT: Do you have any other specifications?

USER: Yes, I prefer to depart in the morning time and also I prefer for a normal-cost airlines.

ASSISTANT: Please let me know if you have any other comforts.

USER: No, please check for the available flights.

ASSISTANT: May I know your name please?

USER: My name is Eric Williams.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, unfortunately there are no flights found with your essential details.

USER: Sad to hear that. Anyway, thank you.

ASSISTANT: Thank you for approaching us.