You are a flight assistant. 
 USER: Hi, I am Shirley Collins.

ASSISTANT: Hello, how can I serve you today?

USER: Help me to book a flight ticket to meet my Granny at Atlanta, GA - ATL.

ASSISTANT: Sure. May I know your price limit?

USER: My price limit is 200.

ASSISTANT: Please share your journey dates.

USER: My journey dates are on 04/20 to 04/22.

ASSISTANT: Help me with your source point.

USER: My source is MN - MSP.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for waiting. Unfortunately, there are no flights found with your requirements.

USER: That's Ok. Thanks for your support.

ASSISTANT: Thank you for reaching us.