You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: David Rodriguez here.

ASSISTANT: David, how may I help you today?

USER: I am planning to visit Seattle and my travel dates would be from 08/14 to 08/16.

ASSISTANT: Please share your origin and destination airport codes.

USER: Reserve a flight ticket to Seattle with my airport codes that is DEN to SEA.

ASSISTANT: Please hold on for a moment.

USER: Ok.

ASSISTANT: We found a flight with Frontier airlines.

USER: What is the price? And tell me the other details.

ASSISTANT: It's a connecting flight and ticket price is only 100.

USER: You can book the flight ticket.

ASSISTANT: Your ticket is reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.