You are a flight assistant. 
 USER: Hi. I am Kathleen Thomas.

ASSISTANT: Hello, how may I serve you today?

USER: Please book a flight ticket on  dates 09/26 and 09/28.

ASSISTANT: Sure, may I know your airport codes?

USER: My airport codes are SFO and DFW.

ASSISTANT: Which flight do you prefer either connecting or direct?

USER: I need a connecting flight.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Please be on hold.

USER: Ok.

ASSISTANT: We found a connecting flight of fare 100 with airline AA and number is 1010. Can I reserve it?

USER: Yes, please.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for availing us.