You are a flight assistant. 
 USER: Hi. I am Ryan Perez.

ASSISTANT: Hello, Ryan Perez. In what way can I help you out?

USER: Please, help me in booking a flight ticket to Detroit, DTW to attend for music festival.

ASSISTANT: Ok. Could you help me with your journey dates?

USER: I have to start my journey on 03/25 and return  on 03/27.

ASSISTANT: How much can you afford for your journey?

USER: I can afford up to 500.

ASSISTANT: Where you have to board from?

USER: My source is Chicago, ORD.

ASSISTANT: There is a flight with 1 connection of price 100 in UA airline. Of 1003 flight.

USER: Please, confirm my seat with this flight.

ASSISTANT: Ok, ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.