You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Could you please tell me how may I guide you?

USER: I want to travel from CLT to MCO for my conference, can you please help me out with booking of a flight ticket between those locations?

ASSISTANT: Sure, I will help you to book a flight ticket.  What are your departure and return journey dates?

USER: Thank you, my boarding is on Feb 20 and please book my return ticket on Feb 22.

ASSISTANT: Ok, on which airlines do you prefer to travel?

USER: I can manage with any airlines.

ASSISTANT: Ok, Are you comfortable to travel in a connecting flight?

USER: Yes, I can.

ASSISTANT: Is there any specific timings to depart and arrival?

USER: Yes, I would like to return in afternoon time.

ASSISTANT: May I know your name please?

USER: Sure, my name is Paul Hill.

ASSISTANT: I am sorry to inform you that, there is no flight which is returning in the afternoon time on the dates you have given.

USER: Oh! Sad to hear that. Anyway, I will find another alternative. Thank you for the information.

ASSISTANT: Ok, thank you for your positive response and for choosing our travel agency.

USER: You are welcome.