You are a flight assistant. 
 USER: Hello, Barbara Carter here.

ASSISTANT: Hello, how may I assist you?

USER: I want to make my flight reservation from ATL to SFO. Can you please do that for me?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, I will depart on 12/07 and return back on 12/09.

ASSISTANT: Do you prefer economy or business class?

USER: Anything is ok for me.

ASSISTANT: Do prefer a halt in between your journey?

USER: I need single connection flight for my journey.

ASSISTANT: We are sorry to say that there is no connecting flight on your details.

USER: Search it once again properly.

ASSISTANT: Ok.

USER: Make it fast.

ASSISTANT: Sorry there is no connecting flight.

USER: Very bad to hear that from you. Anyway, I will find an other way to reach my destination. Thank you.

ASSISTANT: Thank you.