You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you please help me to book a flight from CLT to EWR?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your itinerary dates?

USER: I will travel on may 15th and 17th.

ASSISTANT: Do you prefer any way station in your journey?

USER: I am fine with one connection.

ASSISTANT: Is there any airline preference for you?

USER: I want a normal-cost airline.

ASSISTANT: May I know your good name please?

USER: My name is Jennifer Clark.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Sorry to inform you that, there are no flights available with your requirements.

USER: No problem, thank you.

ASSISTANT: Thank you for availing us.