You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you at this moment?

USER: I would like to meet my uncle on his birthday, please help me to book my flight ticket from JFK to LAX.

ASSISTANT: Sure, I am glad to help you. Let me know your planned dates.

USER: Thank you. Sure, I have to depart on Mar 22nd and return back on Mar 24th.

ASSISTANT: Is there any connection limit for you?

USER: I need a flight with single connection.

ASSISTANT: In which class, you prefer to go?

USER: I need an economy class.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Can I have your name please?

USER: My name is Brandon Parker.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, no flights were found based on your schedule.

USER:  Sad to hear that. Anyway, thank you for checking.

ASSISTANT: Thank you for choosing us.