You are a flight assistant. 
 USER: Hello, I am Alexander Davis.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a ticket to Las Vegas, NV - LAS to participate in Olympics. Can you please book a ticket on 02/26?

ASSISTANT: Sure, can you please provide your budget for ticket?

USER: I can spend up to 500.

ASSISTANT: Kindly mention your other date of travelling?

USER: Ok, my return date is on 02/28.

ASSISTANT: Please specify your source point?

USER: My source is Philadelphia, PA - PHL.

ASSISTANT: Ok, please hold a moment.

USER: Ok.

ASSISTANT: Thanks for your time, we have a direct flight on that route. Are you comfortable with that?

USER: Do not proceed for booking. Thank you.

ASSISTANT: Ok. Thank you for reaching us.