You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What help that you are seeking from my side?

USER: David Hernandez here. Do you have any flight from DTW to LAS?

ASSISTANT: Sure, our agency can help you in booking process and I need your preferable travel dates. Can you please provide it?

USER: My travel dates are 07/25 and 07/27.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT:  I have checked based on your request, there is a flight 1024 providing by JetBlue airlines with a fare of 100 and there is a 1 stop and go flight in your journey, can I book the ticket?

USER: You can proceed.

ASSISTANT: Ok, I have reserved your flight ticket in the above flight.

USER: Thanks for your help.

ASSISTANT: You are welcome and have a happy journey.