You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Can you please make a reservation in economy class to attend event in Charlotte?

ASSISTANT: Sure, We are here to assist you. Can I know your travelling dates?

USER: My journey dates are on Mar 27th and 29th.

ASSISTANT: Please share me your airport codes.

USER: My airport codes are, MCO to CLT.

ASSISTANT: Do you need any break?

USER: Yes, I prefer a flight with one connection.

ASSISTANT: Is there any other specifications?

USER: My return flight should be in the evening.

ASSISTANT: May I know your name?

USER: My name is Donald Walker.

ASSISTANT:   We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for picking us.