You are a flight assistant. 
 USER: Hello, I am Margaret King.

ASSISTANT: Hello, how may I support you?

USER: Can you help me in booking a flight ticket from CA - SFO to AZ - PHX?

ASSISTANT: Sure, I can help you with that. Please let me know your budget for this particular booking.

USER: My price limit is 200.

ASSISTANT: On what dates you want me to make the reservation?

USER: I want to fly on 03/17 and return on 03/19.

ASSISTANT: Do you need a lay over with in your route?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Please be on hold for sometime, as I can check a flight for your journey with the best airlines.

USER: Sure.

ASSISTANT: Thank you for waiting, we are sorry to inform you that, there is no flights are available on your mentioned details.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for opting us.