You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Nicholas Carter.

ASSISTANT: How can I assist you today?

USER: I have to meet my client in Orlando, can you please find a flight ticket for me from Minneapolis & St. Paul?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Thank you. I am planning to travel in these dates Mar 15 and Mar 17.

ASSISTANT: Please provide your airport codes.

USER: The source and destination airport codes are MSP to MCO.

ASSISTANT: Do you have limits about flight connections?

USER: Yes, I am looking for a direct flight.

ASSISTANT: Do you have any specifications about class?

USER: No but the return flight should be in the afternoon time.

ASSISTANT: Do you have any other specifications?

USER: No, I didn't have any other specifications.

ASSISTANT: Please give me a moment.

USER: Ok, take your own time.

ASSISTANT: Thanks for waiting, there is no flights found under your preferable details.

USER: It's ok, I will choose some other source to travel. Anyways thank you for your time.

ASSISTANT: Welcome, have a great day.