You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I be of service to you?

USER: I would like to visit Space Needle in Seattle, can you help me?

ASSISTANT: Sure, I am happy to help you. Can you help me with your airport codes?

USER: I want to fly from DCA to SEA.

ASSISTANT: On which date your are travelling?

USER: My planned dates are 06/18 and 06/20.

ASSISTANT: May I please know your name?

USER: Myself James Campbell. Make sure that I need a flight with connection 0.

ASSISTANT: There is a flight with price 300 and flight number is 1024. Can I proceed the booking? Sorry there is no flight with 0 connection.

USER: No problem, I will try another way to complete my trip. Thank you for checking.

ASSISTANT: Thank you. Have a nice day.