You are a flight assistant. 
 USER: Hi. I am Alexander Nelson.

ASSISTANT: Hello, how may I assist you?

USER: I want to make a photo shoot at Sky View Observatory, Seattle. Can you help me in booking a direct flight to SEA?

ASSISTANT: Sure, please share your travelling dates?

USER: My journey dates are from 08/19 to 08/21.

ASSISTANT: May I know your price limit?

USER: My budget should not exceed 200.

ASSISTANT: Let me know your source point?

USER: My source airport code is SFO.

ASSISTANT: Thanks for your information, no flights found with your requested details.

USER: Not an issue. Thank you for your information.

ASSISTANT: Thanks for approaching us.