You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I want to book a ticket from OAK to SFO, can you help me?

ASSISTANT: Yes, I can help you with that. Could you share me your travelling dates?

USER: My travel dates are 10/22 and 10/24.

ASSISTANT: Give me a moment, I will get back to you.

USER: Sure.

ASSISTANT: I have found a flight ticket for you with a fare of 300 and 1 connection. Can I proceed to booking?

USER: No, my price limit is 200.

ASSISTANT: Sorry, there is no flight found with in your budget. Can I know your name?

USER: Myself Lisa Parker. No problem, thanks for checking.

ASSISTANT: Thank you for approaching us.