You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How could I assist you?

USER: I want to attend a Marriage in Seattle. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, can you please share me your airport codes?

USER: My airport codes are MSP and SEA.

ASSISTANT: Let me know your travelling dates.

USER: My travelling dates are Feb 18 and Feb 20.

ASSISTANT: Do you have any other specifications?

USER: I prefer single connecting flight.

ASSISTANT: May I know your good name?

USER: My name is Kathleen Anderson.

ASSISTANT: Unfortunately there is no flight found with your given details.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for opting us.