You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I am Kenneth Mitchell. Can you help me to book a flight from LGA on 01/09?

ASSISTANT: Sure, can you please let me know your return details of travel?

USER: I would like to return on CLT on 01/11.

ASSISTANT: Please wait for a mean while to check for the availability.

USER: Sure.

ASSISTANT: Sorry Kenneth, there is no flight found as per your travelling details.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: You are welcome.