You are a flight assistant. 
 USER: Hello, Christine Gonzalez here.

ASSISTANT: Hello. Is there anything specific that you would like me to help you with?

USER: I have planned this weekend in Denver, so could you please help me to book a flight from LAX to DEN?

ASSISTANT: Sure, can you please give me your planning dates?

USER: My preferable dates are from 05/01 to 05/03. Make sure that flight should be 1 connected. Please check for it.

ASSISTANT: Sure. Give me a moment.

USER: Ok.

ASSISTANT: Sorry to say that there is no flight found.

USER: Ok, not an issue.

ASSISTANT: Thank you for providing me with your details.

USER: Thank you for the information.