You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I address you?

USER: I want to offer a small treat to my friends in Small-Group Downtown Denver Food Tour in Denver, CO - DEN. So, can you book me a flight ticket for me?

ASSISTANT: That's good, can I know your source airport code?

USER: My source airport is WA - SEA.

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are 02/26 and 02/28.

ASSISTANT: Please mention your good name.

USER: Myself Donna Rodriguez.

ASSISTANT: Ok, your flight ticket is successfully booked with your name. Have a safe journey.

USER: thank you for the booking.

ASSISTANT: You are welcome.

USER: Thank you.