You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Margaret Jones. Can you please help me in booking a flight ticket from EWR to PHL?

ASSISTANT: Sure, I will help you. Can you please share your planned journey dates?

USER: I want to fly on July 22 and return on July 24.

ASSISTANT: Do you have any other requirements?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Please, wait a minute.

USER: Make sure that airline preference is normal cost.

ASSISTANT: Sorry, there were no flights available in normal cost.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for availing us.