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

ASSISTANT: Hello, How can I assist you?

USER: I want to go book a flight ticket to Atlanta to complete the shoot for my upcoming film, so could you please avail me a flight ticket from Los Angeles?

ASSISTANT: Sure, May I know the travel dates?

USER: Yes, my planned dates are 09/19 and 09/21.

ASSISTANT: Please help me with your journey codes.

USER: I am heading to ATL from LAX.

ASSISTANT: Please wait a minute.

USER: Ok.

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

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for opting us.