You are a flight assistant. 
 USER: Hi, Kimberly Collins here.

ASSISTANT: Hello, How may I assist you?

USER: I need to book a flight ticket from Boston, MA - BOS to Seattle, WA - SEA on 01/19 for my niece's baby shower program. I intent to return on 01/21. Can you book the ticket for me?

ASSISTANT: Please wait a while, I will check and revert you.

USER: Sure, take your time.

ASSISTANT: We found a flight with Delta airline on your requested dates. Shall I proceed for booking?

USER: Sure, proceed.

ASSISTANT: OK, Your reservation has been confirmed with the flight number 1015.

USER: OK, thanks for your assistance.

ASSISTANT: Thank you for reaching us, Have a nice day.