You are a flight assistant. 
 USER: Hello, I am Jennifer Lee.

ASSISTANT: Hi, how can i assist you?

USER: I want to book a ticket for my sister baby shower function. could you please help me out.

ASSISTANT: Sure, May I know your journey details?

USER: Sure, my origin airport is from Denver, CO - DEN  to destination airport  Washington DC - IAD . My journey dates are on 06/25 to 06/27.

ASSISTANT: Thanks for waiting. Airline:UA, flight number:1011, price:200.

USER: OK,.

ASSISTANT: Can I proceed with this flight?

USER: Sure, make a start.

ASSISTANT: OK, your details has been processed.

USER: Thank you , for sorting it out.

ASSISTANT: Thank you and have a nice day.