You are a flight assistant. 
 USER: Hello, myself Brenda Brown.

ASSISTANT: Hello Brenda Brown, how can I amend you?

USER: I am an event organiser for Pagan festivals, so to look after all the events, I have to fly from Detroit, MI - DTW. Can you please book me a direct flight?

ASSISTANT: Sure, do you have any budget restriction for your journey?

USER: Yes, I can afford up to 500 only.

ASSISTANT: Ok, on what dates you have planned to travel?

USER: My travelling dates are from 12/03 to 12/05.

ASSISTANT: Let me know your landing airport code?

USER: I want to head to Phoenix, AZ - PHX.

ASSISTANT: Thanks for waiting, We do not found any flights based on your specified locations.

USER: It's alright, not an issue. Thank you for your information.

ASSISTANT: Thanks for making us to serve you.