You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you?

USER: Can you please help me in reserving my flight from ATL to reach PHX?

ASSISTANT: Sure, may I know your connection limit please?

USER: I need a direct flight.

ASSISTANT: May I know your travel dates please?

USER: Sure, my travel dates are Apr 15th and Apr 17th.

ASSISTANT: Please tell me your name for the flight ticket booking?

USER: My name is Jason Brown.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Please wait.

USER: Ok, sure.

ASSISTANT: Thanks for waiting. Sorry presently there are no direct flights available.

USER: Ok, no issues.

ASSISTANT: Thank you.