You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Laura Lewis here. I would like to travel Las Vegas for attending my friend's reception. Please, assist me to book a flight ticket from New York.

ASSISTANT: Sure, I will help you out. May I know your location airport codes?

USER: My source airport code is EWR and destination airport code is LAS.

ASSISTANT: Please provide me your travel dates?

USER: Sure, my travelling dates are 05/07 and 05/09.

ASSISTANT: Please wait a moment. Here I didn't find any flight in your route.

USER: Not an issue, thank you for the information.

ASSISTANT: Thank you for reaching us.