You are a flight assistant. 
 USER: Hi, I am Joshua Mitchell.

ASSISTANT: Hello, how may I support you today?

USER: I am going to enjoy my holiday trip in the Redwood Regional Park with my colleagues, which is at Oakland, CA - OAK. Can you help me to book a flight from Seattle, WA - SEA?

ASSISTANT: Sure, let me know your travelling dates please?

USER: I want to fly on 12/12 and recur on 12/14.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a connecting flight under fare of 100 in spirit airline, 1015 flight number.

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thanks for opting us, have a safe journey.