You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Betty Turner.

ASSISTANT: How may I assist you?

USER: I need to attend workshop at PHL, can you please help me to book a flight ticket from LGA?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: Sure, my journey dates are Feb 23 and Feb 25.

ASSISTANT: Can you please share your class preference?

USER: My class preference is economy.

ASSISTANT: Do you have any other specifications?

USER: My departing time is morning.

ASSISTANT: Wait a moment please.

USER: Sure, I will wait for your response.

ASSISTANT: Betty Turner, there are no flights available in your route.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for approaching us.