You are a flight assistant. 
 USER: Hello. I am Cynthia Hernandez.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: I would like to attend a my brother marriage function at Charlotte, can you help me to book a flight ticket from EWR to CLT?

ASSISTANT: Sure, we are mirthful to help you.

USER: Thank you.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My preferable journey dates are Oct 12 and Oct 14.

ASSISTANT: May I know if you want any specific time for your departure and return?

USER: I would like to depart in the afternoon time.

ASSISTANT: Ok, Do you have any class preference?

USER: I prefer economy class.

ASSISTANT: Thanks for your details, there are no flights available at this moment matching your particulars.

USER: No problem, thank you for the information.

ASSISTANT: Thanks for approaching us, have a great day.