You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Helen Turner, would like to travel from DEN to EWR. Can you help me to book a flight?

ASSISTANT: Could you please provide your travelling dates?

USER: My travelling dates are 12/09 and 12/11. Make sure that 200 and 1 are my price and connections limits.

ASSISTANT: It matches to your requirement . Would you like to confirm the booking?

USER: Please confirm.

ASSISTANT: Your booking is confirmed and flight number is 1000.

USER: Thank you for your supportive service.

ASSISTANT: Thank you for reaching us.