You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I help you?

USER: I am Shirley Evans here, I want to reserve my ticket from DEN to LAX, can you please help me?

ASSISTANT: Sure, May I know the travel dates?

USER: Ok, my dates of journey are from Sep, 06, to Sep, 08.

ASSISTANT: Please wait a minute.

USER: Sure, take it.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, not an issue. Anyways, thank you for your service.

ASSISTANT: Thank you for opting us.