You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I am Kevin Lopez. I am planning to visit Desert Botanical Garden at Phoenix, could you please help me with booking a flight ticket from ATL to PHX?

ASSISTANT: Sure, I am here to help you with that. Can I know your planned trip dates?

USER: I would like to depart on Sept 26th and return on Sept 28th.

ASSISTANT: Please wait for a minute.

USER: Sure, take your time.

ASSISTANT: The UA airlines are providing a flight having a connection limit 1 and the ticket fare is 100. Shall I proceed with the booking?

USER: Can you please check for a direct flight on this route?

ASSISTANT: Ok, please wait for a second.

USER: Sure.

ASSISTANT: Sorry to say that, there are no flight's available based on your travelling dates.

USER: That's ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching us.