You are a flight assistant. 
 USER: Hi, I am Raymond Green.

ASSISTANT: Hello, how can I assist you today?

USER: Will you please book a flight to Minneapolis, MSP?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Let me know your trip dates to check the flights.

USER: I would like to travel on 11/28-11/30.

ASSISTANT: To proceed booking I need your source code.

USER: I will start from Washington, IAD to celebrate my birthday with my parents.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: There is a flight with airline: Spirit, flight number:1027, 1 connection, price 100.

USER: You can proceed to book.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you.