You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Amy Garcia, I want to book a flight to New York, NY-LGA for short vacation. Can you book a flight for me?

ASSISTANT: Sure, can you please share your journey dates?

USER: I will travel on 10/04 and return on 10/06.

ASSISTANT: May I know your origin airport code?

USER: My source airport code is NV-LAS.

ASSISTANT: Sorry, no flights found on your given dates.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for choosing us.