You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: I want to meet my mother, who is sick from long time, Can you please help me to book a flight from Dallas, TX - DTW to MN - MSP?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: I will be travelling for two days from 03/25 to 03/27.

ASSISTANT: Do you need a connection in between your journey?

USER: As I want to reach as soon as possible, I would like you to look for a direct flight.

ASSISTANT: May I know your name?

USER: Sure, Kathleen Hill this side.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Ok, I will find an alternative. Thank you.

ASSISTANT: Thank you for choosing us.