You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Samantha Wright.

ASSISTANT: How may I assist you today?

USER: Please book a flight ticket with a normal-cost to Las Vegas.

ASSISTANT: Please mention your travelling airport codes?

USER: I am heading to LAS from LGA.

ASSISTANT: May I know your travelling dates?

USER: I want to travel on 2nd Apr and return back on 4th Apr.

ASSISTANT: Do you need any specifications?

USER: I want to depart in the morning.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there are no flight tickets available on your journey dates.

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

ASSISTANT: Thank you for reaching our service.