You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Ashley Roberts, I am planning to go for a small trip to Philadelphia, PA - PHL. Can you please book a flight ticket on 01/28?

ASSISTANT: Sure, I will help you to reserve your ticket. Kindly share your source?

USER: Thank you, my source is Las Vegas, NV - LAS.

ASSISTANT: Please forward how much you can effort for a ticket?

USER: I can effort only 500.

ASSISTANT: Please wait a minute. I will get back to you with a matched flight with your details.

USER: OK.

ASSISTANT: Thanks for your valuable time. We found a flight with UA airlines having single connection. Is it Ok for you?

USER: Make sure my return date must be on 01/30.

ASSISTANT: Sure.

USER: Ok, you can proceed now.

ASSISTANT: Your reservation has been confirmed.

USER: Thanks for your kind help.

ASSISTANT: Thank you for choosing our service. Have a happy journey.