You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: Myself Benjamin Phillips.

ASSISTANT: Ok.

USER: Please book a flight ticket from PHL to IAD, can you please help me?

ASSISTANT: Sure, will you provide your travelling dates?

USER: My travelling dates are from 10/13 and 10/15.

ASSISTANT: As per your request, there are no flights found under your details.

USER: It's ok. Thank you for the information.

ASSISTANT: Welcome, have a great day.