You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Cynthia Carter, want to travel from BOS to OAK. Please help me.

ASSISTANT: Sure, can you please share your travel dates?

USER: My travel dates are from 06/09 to 06/11.

ASSISTANT: Let me check for the availability of flight.

USER: Sure, take your time.

ASSISTANT: Cynthia, there is a flight available with price 900 and the connection is 1 with JetBlue airline. Would you like me to proceed with the booking?

USER: My budget limit is 200. Can you check within this?

ASSISTANT: I am sorry to inform you that there is no flight available with lowest fare.

USER: It's ok, thank you.

ASSISTANT: Thank you for contacting us.