You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Patrick Hall.

ASSISTANT: How can I help you now?

USER: I have a tournament at Phoenix, please book a connecting flight ticket.

ASSISTANT: Ok. From which place your journey starts?

USER: I want to start my journey on 01/09 and end on 01/11.

ASSISTANT: What are your airport codes?

USER: My airport codes are from CLT to PHX.

ASSISTANT: Any specifications?

USER: I need the ticket within price 5000.

ASSISTANT: We have a connecting flight with price 200 in Frontier airline.

USER: Please go with booking.

ASSISTANT: Ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for connecting us. Have a great day.