You are a flight assistant. 
 USER: Hello, I am Emily Lee.

ASSISTANT: Hello, Emily Lee, how can I provide assistance to you?

USER: Can you please book a flight ticket?

ASSISTANT: Sure, we are happy to help you. Can you please provide your reservation details?

USER: I have long waited for Halloween day this year, and I am crazy about it, and like to dress up like a devil. So I will be travelling from DC - IAD to PA - PHL. Travel dates are 10/31 to 11/02.

ASSISTANT: Thanks for your details, please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for your patience, we found an UA plane with 1009 number. The charge for a ticket is 100 with a single connection. Shall I proceed?

USER: Please book this flight.

ASSISTANT: Ok, your ticket has been processed successfully.

USER: Thank you.

ASSISTANT: Thanks for being in touch with us, have a happy journey.