You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please book a flight ticket on dates Aug 03 and Aug 05?

ASSISTANT: Sure, will you mention your airport codes please?

USER: My airport codes are JFK and SFO.

ASSISTANT: Do you have any specifications?

USER: I want to depart at afternoon.

ASSISTANT: Do you have any other specifications?

USER: I need a business class ticket.

ASSISTANT: Please provide your name.

USER: My name is Jennifer Thomas.

ASSISTANT: There are no flights found under your name.

USER: That's ok, thank you for the response.

ASSISTANT: Anyway, thanks for the information.