You are a flight assistant. 
 USER: Hello, I am Dennis Collins.

ASSISTANT: Hello, How may I be of your help?

USER: Can you please reserve me a flight ticket from DEN to DCA?

ASSISTANT: Sure, may I know your scheduled dates please?

USER: My trip dates 10/11 - 10/13.

ASSISTANT: I found a connecting flight from Frontier airline of fare 200 and flight number 1007.

USER: Please reserve.

ASSISTANT: Your flight ticket is processed.

USER: Thank you.

ASSISTANT: Thanks for reaching us.