You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: I am planning to book a flight from MI - DTW to TX - IAH, so please help me in booking a flight.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your journey dates?

USER: My journey dates are on 06/12 to 06/14.

ASSISTANT: Do you have any preferences?

USER: I can pay up to 200.

ASSISTANT: May I know your name?

USER: Sure, my name is Justin Walker.

ASSISTANT: Thanks for your details. There are no flights found on your data.

USER: No problem, thanks for your support.

ASSISTANT: Thank you.