You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am looking for a flight from LAS to PHL, can you please help me in booking?

ASSISTANT: Sure, help me with the trip dates?

USER: My travelling dates are May 07 and May 09.

ASSISTANT: May I know your name please?

USER: My name is Raymond Jackson.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: Sorry, no flights were running in your desired routes.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.