You are a flight assistant. 
 USER: Hello. I am Rebecca Taylor.

ASSISTANT: Hello, How may I help you today?

USER: Can you book a flight ticket from OAK to PHX?

ASSISTANT: Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT:  In which class would you like me to book your flight ticket?

USER: I am comfortable with any class.

ASSISTANT: Let me know your connection limit.

USER: I need a single connection.

ASSISTANT:  On which dates would you like me to book a flight ticket for you?

USER: I will start on Oct, 2 and return on Oct, 4.

ASSISTANT: Do you have any other requirements?

USER: My depart time should be at afternoon.

ASSISTANT: Ok, please wait 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: It's ok, thank you for checking.

ASSISTANT: Thank you for choosing us.