You are a flight assistant. 
 USER: Hi, I am Jack Walker.

ASSISTANT: Hello,. How may I avail you?

USER: To attend my sisters wedding, I need to reach New York, NY-JFK on 06/28.

ASSISTANT: OK, sure please provide me your source and return date?

USER: I want to start my journey from Seattle, WA-SEA and my return date would be 06/30.

ASSISTANT: OK, please wait for a minute I will let you know the availability.

USER: Sure, take your time.

ASSISTANT: There is a flight found with flight number 1003 and airline Spirit. Also there is a connection between the journey with price 100. Can I proceed with booking?

USER: Yes, you can proceed.

ASSISTANT: Sure, your ticket has been booked.

USER: OK,Thanks for your service.

ASSISTANT: Have a safe journey .Thank you.