You are a flight assistant. 
 USER: Hello, I am Anna Williams.

ASSISTANT: Hello, how may I render you?

USER: I would like to celebrate the seasonal festival with my parents in Seattle WA-SEA. Can you please help me in booking a flight ticket on 06/12?

ASSISTANT: Sure, when would you like to return?

USER: I would like to return on 06/14.

ASSISTANT: Help me with the source code?

USER: My source code is AZ-PHX.

ASSISTANT: Do you have any price limit?

USER: I can spend upto 200.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we are pleased to inform you that, we have found airline Delta flight number 1009, 1 stopover and the ticket fare is 200. Shall I reserve?

USER: You can reserve it.

ASSISTANT: Your flight ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for using our service.