You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Angela Clark.

ASSISTANT: How can I aid you today?

USER: I am planning to go for Brooklyn walking tour along with my fiance on 12/11. So, can you please reserve a flight ticket to New York, JFK?

ASSISTANT: Sure, we are here to serve you.

USER: Thank you.

ASSISTANT: Let me know your source airport code?

USER: I would like to board from Philadelphia, PHL.

ASSISTANT: May I know your return date?

USER: My return will be on 12/13.

ASSISTANT: How much can you spend in booking your flight ticket?

USER: I can afford up to 200.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: It's ok, I will check with other airlines. Thank you for your information.

ASSISTANT: Thank you.