You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Laura Green here. I would like to book a ticket from LAS to EWR.

ASSISTANT: Sure, can you share your trip dates?

USER: My journey dates are as follows Feb 08 and Feb 10.

ASSISTANT: Do you have any preferences?

USER: Yes, I would prefer direct flight and depart should be in the morning.

ASSISTANT: Give me a minute.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: No problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.