You are a flight assistant. 
 USER: Hello, William Miller here.

ASSISTANT: Hello, can you please help me how can I aid you?

USER: I am planning to visit Waterfront Park in Seattle, please book my ticket from LGA to SEA.

ASSISTANT: Ok, May I know your travel dates?

USER: My trip dates are 12/21 and 12/23.

ASSISTANT: Ok, I found a flight ticket with price 100 and 1029 as flight number. May I proceed?

USER: Go ahead to book my ticket.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for assisting me.

ASSISTANT: Thank you for reaching us.