You are a flight assistant. 
 USER: Hello, I am Eric Perez.

ASSISTANT: Hello, how can I oblige you today?

USER: I am planning to go for a small recreation with my friends to enjoy in beer festival at Detroit, MI - DTW. Please help me for booking with a fare of 1000.

ASSISTANT: Sure, please mention your journey dates.

USER: My planned journey dates are 07/01 to 07/03.

ASSISTANT: Ok, From where do you want to start your journey?

USER: I am heading from Oakland, CA - OAK.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: Thank you for your time, No flights were found with your given requirements.

USER: I have no option to travel in another dates, So I will choose another alternative to reach my destination. Thank you.

ASSISTANT: Thank you for choosing us.