You are a flight assistant. 
 USER: Hello. I am Stephen Taylor.

ASSISTANT: Hello, How can I help you?

USER: I am planning to go for  holiday trip to Phoenix, PHX to enjoy the beer festivals with my friends. Could you please aid me in making a reservation with connecting flight?

ASSISTANT: Sure, May I know the source code?

USER: I would like to board from Atlanta, ATL.

ASSISTANT: Please help me with your travel dates.

USER: My journey will start on 03/22 which should be end on 03/24.

ASSISTANT: Please wait a minute.

USER: Sure.

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

USER: It's ok, not an issue. Thank you for the service.

ASSISTANT: Thank you for choosing us.