You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I want to book an economy class flight ticket to meet my grandparents at CO. Can you help me?

ASSISTANT: Can you please tell me your name?

USER: Laura Allen.

ASSISTANT: May I know your travelling dates?

USER: 09/06 and 09/08 are my trip dates.

ASSISTANT: May I know your journey airport codes?

USER: ORD and DEN are my airport codes.

ASSISTANT: Please let me know your class preference?

USER: I already mentioned above.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: I have searched a connecting flight with ticket fare 100 and 1016 as flight number in Frontier Airline. Shall I proceed with booking?

USER: You can reserve it.

ASSISTANT: Your ticket is confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for reaching us.