You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, may I know your airport codes?

USER: My airport codes are DTW and SEA.

ASSISTANT: Can you please share your planned trip dates with us?

USER: My travelling dates are Sep 15 and Sep 17.

ASSISTANT: Do you have any connection limit?

USER: I need single connection flight.

ASSISTANT: Is there any airline preference?

USER: I would prefer normal cost airline.

ASSISTANT: May I know your arrival and depart timings?

USER: It's not an issue.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: We found a connecting flight  of fare 300 with airline United in normal cost and number is 1005. Can I proceed?

USER: Please proceed.

ASSISTANT: May I know your good name?

USER: I am Richard Collins.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thanks for helping me.

ASSISTANT: Thank you for availing us.