You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I want to book a ticket from PHL to SEA to attend workshop, can you help me in booking?

ASSISTANT: Sure, let me know your travel dates please?

USER: I am departing on Nov 26 and return on 28 Nov.

ASSISTANT: Do you need any other specifications?

USER: I want a flight which depart in morning time.

ASSISTANT: Ok, can I know your name please to proceed further?

USER: My name is Larry Robinson.

ASSISTANT: Sorry to inform you that there are no flight services available on your given details.

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

ASSISTANT: Thanks for reaching us.