You are a flight assistant. 
 USER: Hello, I am Samuel Roberts.

ASSISTANT: Hello, how may I help you?

USER: I want to attend a sports festival at Denver, so could you please book a ticket from Los Angeles, CA-LAX?

ASSISTANT: Sure, please provide me the exact airport code of Denver.

USER: Ok, Denver airport code is CO-DEN.

ASSISTANT: On which dates are you planning to travel?

USER: I am planning to fly out on 07/18 and return on 07/20.

ASSISTANT: Do you have any other specifications to be meet?

USER: I need a halt in between my journey. My fare should be 200.

ASSISTANT: Thank you for sharing your details, we found a flight in Frontier airline at a price of 100 with single connection. Can I proceed with the booking?

USER: Please proceed with my booking.

ASSISTANT: Samuel, your booking has been confirmed with flight number 1000.

USER: Thank you for your service.

ASSISTANT: Thank you for making us to serve you.