You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Edward Lopez, want to go for foothills explorer tour at Denver, DEN.So, will you book a flight ticket from Washington, IAD?

ASSISTANT: Sure, please let me know your travel dates.

USER: I want to start on 12/03 and return on 12/05.

ASSISTANT: We found a connecting flight with price 200, flight number is 1001. Shall I proceed for booking with Frontier airlines?

USER: You can confirm.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for aiding me.

ASSISTANT: Thanks for choosing us.