You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I address you?

USER: I want to go for a round trip to meet my sister on 03/25. Can you help me in booking a flight ticket?

ASSISTANT: Ok, may I know your airport code?

USER: My airport code is DTW.

ASSISTANT: Do you have any connection limit in between?

USER: Yes, I need a connecting flight.

ASSISTANT: Ok, can you share your return date?

USER: I will return on 03/27.

ASSISTANT: Ok, we found an Hawaiian airline with flight number 1002 available for you. And the fare is 100. Shall I proceed with this booking?

USER: Yes, you may proceed.

ASSISTANT: May I know your name to proceed?

USER: I am Mary Evans.

ASSISTANT: Your booking is done.

USER: Thanks for your help.

ASSISTANT: Thanks for opting us.