You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Patrick Williams, can you assist me to book my flight ticket to attend a conference with my clients in Charlotte city in the month of June?

ASSISTANT: Sure, can you share your journey dates?

USER: Sure, my journey starts from June 5th to June 7th.

ASSISTANT: May I know your airport codes for booking?

USER: Sure, my nearest airport codes are PHX and CLT.

ASSISTANT: Do you have any specifications?

USER: Yes, I need to reach CLT in the afternoon on June 5th.

ASSISTANT: Sorry, there is no flight in the afternoon on your given dates.

USER: Not an issue with that, I will go by road trip to complete my trip. Anyways thank you for the information.

ASSISTANT: Thank you for reaching us.