You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I had a very bad experience with your agency last time, I hope this time you provide me good service. I want you to book my flight ticket from DEN to DFW?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: Sure, I will depart on 11/11 and return on 11/13.

ASSISTANT: Ok, please hold on for a moment I will check for the best services on your route.

USER: Sure.

ASSISTANT: Ok, there is a flight 1020 in Hawaiian airline matching your details with price 100. Shall I proceed?

USER: Sounds good, you can proceed for booking the ticket on the name of Raymond Smith.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your help.

ASSISTANT: You are welcome, have a safe journey.