You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I want to book a connecting flight ticket to attend an cultural event which is going to held at WA. Can you help me?

ASSISTANT: Sure, may I know your airport codes please?

USER: LAX and SEA are my airport codes.

ASSISTANT: On which dates your planning to travel?

USER: Sept 17th and 19th are my travelling dates.

ASSISTANT: Is there any specifications?

USER: I would like to make my trip in an business class.

ASSISTANT: May I know your name please?

USER: Barbara Wilson here.

ASSISTANT: I am sorry no flights found on your route.

USER: No issue. Thank you.

ASSISTANT: Thank you for choosing us.