You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Eric Carter.

ASSISTANT: How can I assist you today?

USER: I would like to travel from PHL to LAX to meet my friend, can you help me for booking a flight ticket?

ASSISTANT: sure, I will help you in booking. Can you please share your travelling dates?

USER: My travelling dates are 02/01 and 02/03.

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

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

ASSISTANT: Welcome, have a nice day.