You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I want to book a direct flight to attend an emergency case at MN-MSP from NV-LAS.Can you help me?

ASSISTANT: Sure, I will help you. Kindly, mention your price limit to book a ticket.

USER: 500 is my price.

ASSISTANT: May I know your journey dates?

USER: 06/13 and 06/15 are my travelling dates.

ASSISTANT: Can you please provide your good name?

USER: I am Frank Hall.

ASSISTANT: Thanks for sharing your details. Unfortunately, there are no flights available that matches your requirements.

USER: No issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you.