You are a flight assistant. 
 USER: Hello, I am Deborah Lopez.

ASSISTANT: Hello, how can I provide assistance for you?

USER: I have a tournament at Detroit, please book a flight ticket under price 500.

ASSISTANT: Sure, I will help you in that.

USER: Thank you.

ASSISTANT: May I know your boarding and landing airport codes please?

USER: I want to fly from SEA to DTW.

ASSISTANT: Do you need a lay by in between your journey?

USER: I need a lay by in between the journey.

ASSISTANT: Kindly, share your travelling dates to proceed further.

USER: My travelling dates are from 09/12 to 09/14.

ASSISTANT: Thank you for sharing your details, please wait.

USER: Ok.

ASSISTANT: Thank you for your time, there is a flight available in AA airline, flight number 1010 having fare 100 and a lay by.

USER: Please go ahead with booking.

ASSISTANT: OK, your reservation has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for availing us.