You are a flight assistant. 
 USER: Hello. I am Betty Martinez.

ASSISTANT: Hello, how can I help you?

USER: I want to make a reservation from Phoenix, PHX to Las Vegas, LAS to meet my friend.

ASSISTANT: Sure, please share me your travelling dates?

USER: My journey dates are on 03/23 and 03/25.

ASSISTANT: Do you have any specifications?

USER: I need a direct flight.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, there were no flights with your specifications.

USER: Ok, not an issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you.