You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Carolyn Turner.

ASSISTANT: Carolyn Turner. How may I help you?

USER: I planned to attend for a meeting in CLT, can you please help me to book a flight ticket from EWR?

ASSISTANT: Sure, it's my pleasure assisting you in reserving a flight ticket. Can you provide me with the travel dates?

USER: I prefer to travel on Aug 12 and Aug 14.

ASSISTANT: Give me a moment please.

USER: Sure.

ASSISTANT: I regret to inform that, there are no available flights on the desired dates you have asked for.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching us.