You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I want to fly form OAK to DFW. Can you book a ticket from that route?

ASSISTANT: Sure, We are here to help you. Can I know your travelling dates?

USER: My planned travel dates are 03/23 and 03/25.

ASSISTANT: Do you need any break?

USER: I want a flight with single connection.

ASSISTANT: May I know your name?

USER: Sure, Justin Brown here. I am comfortable with business class only.

ASSISTANT: Is there any other specifications?

USER: No more, thank you.

ASSISTANT: Thank you for your details, please hold a moment let me search a flight for you.

USER: Sure.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: No issues, thank you for the information.

ASSISTANT: Thank you for reaching us.