You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I need to book a flight ticket from CLT to EWR, can you help me in booking a flight ticket?

ASSISTANT: Sure, I am here to help you. Can you please share your travel dates?

USER: Sure, my journey dates are Jun 22 and Jun 24.

ASSISTANT: May I know your connection limit?

USER: I prefer maximum one connection.

ASSISTANT: May I know your departure and arrival time?

USER: I would prefer depart time at morning.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Ok, please let me know your name.

USER: Sure, Richard Martinez here.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: Ok, no worries at all. Thank you for your information.

ASSISTANT: Thank you for choosing us.