You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Jennifer Phillips. I am looking for a flight from DTW to IAD, can you please help me out?

ASSISTANT: Sure, please provide your price limit.

USER: I can afford up to 200.

ASSISTANT: Ok, do you prefer business class or economy class?

USER: I am comfortable with any class.

ASSISTANT: Ok, when do you want to depart and return?

USER: Sure, my travelling dates are Nov 26 and Nov 28.

ASSISTANT: Ok, please wait for a while.

USER: I need a direct flight.

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

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for choosing us.