You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am Andrew Hernandez. I need a flight from Atlanta to San Francisco, to attend the flower festival. Can you assist me with booking?

ASSISTANT: Sure, I am here to help you.

USER: Ok.

ASSISTANT: Let me know your airport codes.

USER: The airport codes are: ATL, Atlanta to SFO, San Francisco.

ASSISTANT: Do you have any connection limit?

USER: I prefer to travel with a stop over.

ASSISTANT: May I know your travelling dates?

USER: I would like to travel on 04/23 to 04/25.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flights found on your given specified dates.

USER: Thank You, for sharing the information. I will check with other alternative.

ASSISTANT: Thank you for opting us.