You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Myself Emily Lopez. Can you please help me in flight ticket booking process from SEA to PHL?

ASSISTANT: Sure, can you share your trip dates?

USER: Thank you for your response, I want to take off on Oct 11 and book my return ticket also on Oct 13.

ASSISTANT: Do you have any preferences?

USER: I want to return in evening time.

ASSISTANT: Do you have any other specifications?

USER: I want a business class flight.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: Oh! It's ok no problem.

ASSISTANT: Thank you for reaching us.