You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you?

USER: I am Kenneth Edwards. I want to participate in motor cycle rally in Hardvard campus at Philadelphia on 05/19 and will return on 05/21.

ASSISTANT: Sure, we are here to help you. Please provide me your source and destination airport codes.

USER: My airport codes are from PHX to PHL.

ASSISTANT: Ok, do you want any lay by within your journey?

USER: I need a halt.

ASSISTANT: Ok, please be on hold. Thank you for being on hold, we have a connecting flight in UA airline at a price of 200 from flight 1022.

USER: Ok, please book this ticket.

ASSISTANT: Your reservation has been processed.

USER: Thank you.

ASSISTANT: Thank you for reaching our service.