You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Myself Rachel Evans. Can you please help me in booking a flight ticket from EWR to LAS locations?

ASSISTANT: Nice to meet you Rachel Evans. Sure, may I know your trip dates to go?

USER: My travelling dates are from 09/24 and 09/26.

ASSISTANT: Sorry for the inconvenience, there is no flight for you with your preferable information.

USER: It's ok. Thank you for the information.

ASSISTANT: Ok, thanks for consulting us.