You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Angela Rodriguez here. I want to reserve my ticket fro LAX to SEA. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: My trip dates are from 02/17 to 02/19.

ASSISTANT: Please allow me a moment.

USER: Sure, I will wait for your information.

ASSISTANT: Sorry Angela Rodriguez, there is no flight in your route.

USER: That's fine, no problem. Thank you for searching.

ASSISTANT: Thank you for reaching us.