You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Kenneth Jones.

ASSISTANT: How may I help you out?

USER:  I have to book a flight ticket  that I am unable to do, could you please help me in booking flight ticket on dates 10/28 and 10/30?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your airport codes too?

USER: Yes, my airport codes are ATL and MSP.

ASSISTANT: Sorry, there are no flights found.

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

ASSISTANT: Thank you for reaching us.