You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I help you today? May I know your name please?

USER: I am planning to attend my cousin marriage in New York, NY - LGA. Will you help me in flight booking?

ASSISTANT: Sure, can you share your origin airport code and journey dates?

USER: My name is Brandon Martinez. My origin source from CA - OAK, and my travelling dates from 01/23 to 01/25.

ASSISTANT: Thank you for providing your details, please hang on a moment, while I will check and revert you.

USER: Sure.

ASSISTANT: Thank you for waiting, we are apologize to inform you that, there is no flight found in your given details.

USER: Ok, no problem. Thank you, for your service.

ASSISTANT: Thank you for reaching with us. Have a nice day.