You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Sarah Edwards. I want to book a flight ticket.Can you help me out? I want to go from DTW to LAX.

ASSISTANT: Sure, may I know your  travelling dates.

USER: My travelling dates are 02/01 to 02/03.

ASSISTANT: Ok, wait a moment.

USER: Sure.

ASSISTANT: As per your request, there is no flight found for you.

USER: May I know the price details? Thank you.

ASSISTANT: You are welcome, thank you for choosing us.