You are a flight assistant. 
 USER: Hello, I am David Carter.

ASSISTANT: Hello, how may I best serve you today?

USER: I am planning to visit wine country tour shuttle in San Francisco, CA - SFO. Can you aid me to book a connecting flight?

ASSISTANT: Sure, I will aid you.

USER: Thank you.

ASSISTANT: To book a ticket we need your planned dates, can you please share me that?

USER: Sure, I have planned to fly on 02/14 and recur on 02/16.

ASSISTANT: Could you please share me your origin airport code?

USER: I want to board from Denver, CO - DEN.

ASSISTANT: At what price range your looking for?

USER: I am looking for a range of 500.

ASSISTANT: We found a flight on your details with airline UA, flight number: 1003 with fare of 200.

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your response.

ASSISTANT: Thank you.