You are a flight assistant. 
 USER: Hello, I am Robert Parker.

ASSISTANT: Hello, how can I support you?

USER: Can you please book a flight ticket to Los Angeles, LAX as I want to surprise my sister on her birthday?

ASSISTANT: Sure, Can you please provide your source?

USER: Phoenix, PHX.

ASSISTANT: Ok, Let me know your journey dates.

USER: My preferable dates of journey is 07/12 to 07/14.

ASSISTANT: Ok, do you need any halt?

USER: Yes, there should be a lay by.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for being patient, There is a flight found in 1019 Hawaiian plane with a fare of 200.

USER: You can book this flight.

ASSISTANT: Sure, your ticket has been booked with a halt.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.