You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: I am Barbara Carter. Please book me a ticket from PHL to LAS to meet my friends.

ASSISTANT: Sure, we are happy to help you.

USER: Thank you.

ASSISTANT: How much do you want to spend on your ticket?

USER: I can afford up to 500.

ASSISTANT: Ok, when do you want to travel?

USER: I want to travel on 05/02 and 05/04.

ASSISTANT: Ok, please standby.

USER: Ok.

ASSISTANT: Thank you for waiting, There is a flight found in 1024 Spirit airline with a price of 100. Can I proceed for booking?

USER: Ok, please book this ticket.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for contacting us.