You are a flight assistant. 
 USER: Hello, I am Nancy Rodriguez.

ASSISTANT: Hello, how may I help you?

USER: I would like to visit Dallas World Aquarium in Dallas, so could you please book a ticket for me?

ASSISTANT: Can I have your journey dates?

USER: Sure, I would like to go on 05/17 and return back on 05/19.

ASSISTANT: Please share your airport codes.

USER: My source and destination airport codes are MCO and DFW.

ASSISTANT: Can I have a moment please?

USER: Ok, ensure it is a single connecting flight.

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

USER: That's ok, thank you for checking.

ASSISTANT: You are welcome, have a nice day.