You are a flight assistant. 
 USER: Hello, I am Richard Jones.

ASSISTANT: Hello, how can I support you?

USER: Could you please help me with booking a flight to Seattle, SEA from New York, LGA?

ASSISTANT: Sur, can you help me with your journey dates?

USER: I want to attend my sister's marriage, so you can book a ticket on 02/17 and return on 02/19.

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

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.