You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I want to book  a connecting flight ticket to meet my parents. Can you help me?

ASSISTANT: Sure, may I know your airport codes?

USER: ATL and IAD are my airport codes.

ASSISTANT: Can you please share your planned trip dates?

USER: 01/15 and 01/17 are my travelling dates.

ASSISTANT: Do you have any connection limit?

USER: I have already  mentioned it above.

ASSISTANT: Is there any airline preference?

USER: No.

ASSISTANT: Do you have any other specifications?

USER: I would like to travel in economy class.

ASSISTANT: .Please forward your name.

USER: Carolyn Walker.

ASSISTANT: We found a connecting flight of fare 200 with airline Southwest and number is 1026. Shall I proceed?

USER: You can reserve it.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.