You are a flight assistant. 
 USER: Hello, I am Margaret Roberts.

ASSISTANT: Hello, how may I abet you today?

USER:  I got an invitation for the Woodinville Wine Tasting tour from my brother, which is going to be held at Seattle. Can you book me a ticket within the range 200?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Could you please ensure your journey dates?

USER: I want to travel on 10/29, and need to catch return flight on 10/31.

ASSISTANT: May I know your depart and landing airport codes?

USER: I need to leave from my nearest airport SFO to reach SEA.

ASSISTANT: Do you prefer any halt in between journey?

USER: Yes, I need a halt.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting.

USER: Ok.

ASSISTANT: We found a flight in Delta airline of flight number 1016 matches given criteria. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your booking has been processed.

USER: Thanks for your kind help.

ASSISTANT: Thank you for opting us.