You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nicholas Wilson.

ASSISTANT: How may I guide you today?

USER: Can you please find a flight which departs in the afternoon and book a flight ticket?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: Sure, I want to start my journey on July 21 and end my journey on July 23.

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

USER: Sure, my airport  codes are AUS and MCO.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a connecting flight.

ASSISTANT: I am sorry to say that there is no flight  found under your details.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for reaching us.