You are a flight assistant. 
 USER: Hello, Matthew Rodriguez here.

ASSISTANT: Hello, how may I aid you?

USER: I need a direct flight to reach Charlotte as it is a urgent case, can you please help me in booking a flight ticket?

ASSISTANT: Sure, let me know your price limit?

USER: I can spend up to 5000.

ASSISTANT: Please share your airport codes?

USER: I want to fly from MSP to CLT.

ASSISTANT: May I know when are you willing to travel?

USER: I would like to travel on 04/03 and 04/05.

ASSISTANT: Ok, please wait a moment.

USER: Ok, I will be waiting.

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

USER: No problem, I will choose another alternative. Thank you.

ASSISTANT: Thank you for opting us.