You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Myself Charles Jones.

ASSISTANT: Yes, Jones.

USER: Will you help me in booking the flight ticket from JFK to OAK?

ASSISTANT: Sure, I'm gleeful to help you in that. Can you please provide me your preferable journey dates?

USER: My travelling dates are 01/23 and 01/25.

ASSISTANT: Fine, please wait for a while.

USER: Ok, I will wait for your response.

ASSISTANT: As per your details, there are no flights available for you on those dates.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for choosing us, have a nice day.