You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Myself Steven Phillips. I am planning to visit DCA to meet my father, can you please find a flight from LGA?

ASSISTANT: Sure, I will help you to book a flight. Can you please share me your travelling dates?

USER: My planning dates are from 09/21 till 09/23.

ASSISTANT: Please give me a moment.

USER: Ok, take your time.

ASSISTANT: Sorry, no flights are available on your route.

USER: That's ok, I will choose any other way to reach my destination on time. Anyway thank you for checking.

ASSISTANT: Welcome, have a nice day. Thank you for opting us.

USER: Welcome.