You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be at your service.

USER: My son is giving a performance in an International competition at PA-PHL, help me out with booking from IAD.

ASSISTANT: Sure, may I know when do you want to travel?

USER: I would like to start on 11/05 and will return on 11/07.

ASSISTANT: Do you need a lay by?

USER: I need a stop over in between my journey.

ASSISTANT: May I know your name?

USER: Sure, I am Andrew Green.

ASSISTANT: Ok, there is an Hawaiian airline with flight number 1004 is available on your rout.

USER: You can reserve it for me.

ASSISTANT: Your ticket has been reserved. you need to pay 100 and collect the ticket at check n.

USER: Thank you.