You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you?

USER: I am Karen Young. I am looking for a flight from SEA to ATL, can you help me out?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Can you please mention the dates of your journey?

USER: My trip dates are from Apr 19th till Apr 21st.

ASSISTANT: Do you need a halt in between your journey?

USER: No, I don't need.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there were no flights found with your given requirements.

USER: That's ok, not an issue. Thank you.

ASSISTANT: Thank you for approaching us.