You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a economy class flight ticket to meet my sister, can you help me with booking?

ASSISTANT: Sure, we are here to help you. Can you please share your travel dates?

USER: My travel dates are Sept 11 and Sept 13.

ASSISTANT: May I know your airport codes?

USER: I will fly from ATL to reach my destination DEN.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Let me know your name?

USER: I am Dennis Anderson.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: We found Frontier airline with connecting flight and number 1020 fare of 100 with economy class. Shall I proceed with booking?

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thanks for reaching us.