You are a flight assistant. 
 USER: Hello, I am Marry Lee.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to enjoy fun filled vacations at Atlanta, ATL. So can you please help me in booking a flight ticket from Seattle, SEA?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you share me your travelling dates to book a flight ticket?

USER: My travelling dates are from Dec 07 to Dec 09.

ASSISTANT: Do you have any other specifications?

USER: Yes, I need a single way station in between journey.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: Ok, That's not a problem. Thanks for your information.

ASSISTANT: Thanks for approaching us.