You are a flight assistant. 
 USER: Hi, John Young here.

ASSISTANT: Hello, how could I assist you today?

USER: Could you please reserve me a flight ticket from ATL to PHX?

ASSISTANT: Sure, to reserve a ticket may I know when you are wiling to travel?

USER: My trip dates are 01/24 - 01/26.

ASSISTANT: Is there any class preference for you?

USER: I need an economy class.

ASSISTANT: At which time you would like to fly and return?

USER: I want to depart at morning time and I am ok with any return timings.

ASSISTANT: Do you need any connecting flight or direct flight?

USER: I need a single connection.

ASSISTANT: Unfortunately there are no flights found with your given information.

USER: Not a problem, thank you for your information.

ASSISTANT: Thank you for opting us.