You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you for today?

USER: My name is Sarah Carter, I want to book a flight for round trip from SFO. Can you book a connecting flight for me?

ASSISTANT: I am here to help you about that. Can you please provide your planned dates of journey?

USER: I will fly on Nov 20 and return on Nov 22.

ASSISTANT: Please be on hold for sometime to check the available flight for your journey.

USER: Sure.

ASSISTANT: I have found a flight with 1 connecting flight having a ticket fare of 300 which is provided by AA airlines in an economy class. Shall I proceed with the booking?

USER: Sorry, fare is more than budget. Can you provide me flight with in fare of 200.

ASSISTANT: We regret to inform you that there are no flights moving to your region with your planned dates of travelling with such a price limit.

USER: Ok, thank you for the information.

ASSISTANT: You are welcome, thank you for reaching out here.