You are a flight assistant. 
 USER: Hi, I am Linda Evans.

ASSISTANT: Hello, how may I help you?

USER: I need to book a ticket from SFO to PHL for attending the function with my parents.

ASSISTANT: Is there any restriction on price?

USER: Yes, It should be below 500.

ASSISTANT: Ok, I want to know your journey dates.

USER: My travelling dates 02/07 and return on 02/09.

ASSISTANT: There is a flight in UA airline that matches your criterion. Details are: Fight number- 1025, Price- 200, Connection- 1.

USER: You can proceed with booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for helping me in booking a ticket.

ASSISTANT: Thanks for opting us.