You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Jeffrey Perez.

ASSISTANT: How may I assist you today?

USER: Can you please book a flight ticket from JFK to ATL?

ASSISTANT: Sure, I will help you. Can I know your travelling dates?

USER: Sure, I need to travel on dates of 10/30 and 11/01.

ASSISTANT: Ok, wait for a minute.

USER: Sure, take your time.

ASSISTANT: Sorry to say that, no flight's available based on your request.

USER: Oh! It is sad to hear. Anyway, I will choose another agency this time. Thank you for your time.

ASSISTANT: Thank you for consulting with us.