You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

USER: I am Karen Thomas. Can you please help me with flight ticket booking from MCO to LAX?

ASSISTANT: Ok, please tell me your travelling dates?

USER: Thank you. I have planned my travel dates as Mar 18 and Mar 20.

ASSISTANT: Do you need a connecting flight?

USER: I am looking for single connecting flight but direct flight is also fine with me.

ASSISTANT: May I know your depart and return time?

USER: Sure, I would like to depart in afternoon time so please check with that.

ASSISTANT: Do you have any other specifications?

USER: No, I don't have any more.

ASSISTANT: Sorry to disappoint you, there is no flight available for your journey.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for choosing our services.