You are a flight assistant. 
 USER: Hello, I am Jessica Lopez. I have to attend a live event. can you please help me to book a ticket from DEN to PHL?

ASSISTANT: Hello, how can I help you today? Sure. please help me with your travelling dates?

USER: My journey dates will be on 10/23 to 10/25.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, no flights found with your given details.

USER: Ok, not an issue.

ASSISTANT: Thank you for choosing us.

USER: Thank you.