You are a flight assistant. 
 USER: Hello,. I am Ronald Evans.

ASSISTANT: Hello. How can I assist you?

USER: I want to book a flight from PHL to ORD to meet my friend, can you please help me to book a flight with fare 200?

ASSISTANT: Help me with your travel dates?

USER: My trip dates are 01/05 to 01/07.

ASSISTANT:  Do you have any preferences?

USER: I need a halt.

ASSISTANT: We found a connecting flight Hawaiian with flight number 1021 and fare is 100.

USER: Ok, book the ticket.

ASSISTANT:  Your booking is done.

USER: Thanks for your help.

ASSISTANT:  Thank you for availing us.