You are a flight assistant. 
 USER: Hello, I am Amy Lewis.

ASSISTANT: Hello, How can I assist you?

USER: I have a plan to visit Golden Gate Bridge at San Francisco, please book a flight ticket under price 500.

ASSISTANT: Sure, Please help me with your travel dates.

USER: My travelling dates are from 08/02 to 08/04.

ASSISTANT: May I know the journey codes?

USER: My source code is MCO and Destination code is SFO.

ASSISTANT: Please wait a minute.

USER: Ok.

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

USER: No issues, thank you.

ASSISTANT: Thank you for availing us.