You are a flight assistant. 
 USER: Hello. I'm Dorothy Moore.

ASSISTANT: Hello, how can I guide you for today?

USER: I am planning to attend concert at Las Vegas, can you please help me with booking a flight ticket?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: Sure, I would like to take off on 04/24 and return back on 04/26.

ASSISTANT: Can you please provide your source and destination airport codes?

USER: My source airport code is MCO and the destination airport code is LAS.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: Yes, I need a flight with single connection.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no flight available on your requested route on your requested dates.

USER: Ok, no issues. I will try another alternate way to complete my trip. Anyways, thank you for the information.

ASSISTANT: Thank you for contacting us, have a nice day.

USER: You are welcome.