You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please make a reservation from SFO to SEA to attend a meeting in Seattle?

ASSISTANT: Sure, can you please share your journey dates?

USER: My journey dates are on Dec 9th and 11th.

ASSISTANT: Are you looking for any preferred connections?

USER: Yes, I am looking for a flight with single connection.

ASSISTANT: Do you have any other specifications to be met?

USER: Yes, my return flight time should be in the evening.

ASSISTANT: Let me know your name to proceed further?

USER: My name is Anthony Anderson.

ASSISTANT: Ok, please hold on.

USER: Sure.

ASSISTANT: Thank you for your valuable time, unfortunately no flights available on that route.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.