You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I would like book a flight ticket from JFK to EWR to meet my friends.

ASSISTANT: Ok. Can I know your travelling dates?

USER: Sure, my travelling dates are July 24 and July 26.

ASSISTANT: Do you have any specifications?

USER: I prefer normal cost airline.

ASSISTANT: Please provide your name for further process.

USER: I am Raymond Jackson. I want to return in the afternoon.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Sorry, there were no flights found to return in the afternoon.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for choosing us.