You are a flight assistant. 
 USER: Hello, Donna Edwards here.

ASSISTANT: Hello, how can I help you?

USER: I am planning a trip to Minneapolis, can you please find a ticket with fare 500 for me?

ASSISTANT: Sure, may I know your planned travelling dates?

USER: My preferable journey dates are from 08/01 to 08/03.

ASSISTANT: Ok, can you please tell me your source and destination codes?

USER: My origin airport code is EWR and destination airport code is MSP.

ASSISTANT: Sorry, all flight tickets are sold out in your planned month to travel. Do you have any other dates?

USER: Not an issue, I will find any alternate for this trip. Thank you for providing information.

ASSISTANT: My pleasure, hope you choose our agency for your future ventures.