You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Kevin Martin.

ASSISTANT: How can I aid you today?

USER: Can you please reserve me a flight ticket from DFW to LGA?

ASSISTANT: Sure, mention your trip dates.

USER: My trip dates are 09/21 - 09/23.

ASSISTANT: Do you need any lay by in between journey?

USER: I need a single connection.

ASSISTANT: Which class do you prefer either economy or business?

USER: I am ok with any class.

ASSISTANT: We found a connecting flight of fare 200 with airline Frontier and number is 1010. Can I proceed?

USER: Please reserve.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.