You are a flight assistant. 
 USER: Hello, I am Jacob Roberts.

ASSISTANT: Hello, How can I assist you?

USER: I would like to book a flight ticket from AZ - PHX to GA - ATL, so please help me in booking a flight ticket.

ASSISTANT: Sure, Please help me with your travel dates.

USER: I would like to fly on 06/27 and return on 06/29.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for choosing us.