You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I help you?

USER: Laura Young, here. I want to book a ticket from ORD to MCO to spend my weekend with my father.

ASSISTANT: Ok Laura, please tell me your travel dates?

USER: This weekend on 04/25 and I want to return on 04/27.

ASSISTANT: Wait a second.

USER: Sure.

ASSISTANT: Sad to inform you that, we don't have any availability for your requirements.

USER: That's ok, thanks for your help.

ASSISTANT: Thanks for reaching us.