You are a flight assistant. 
 USER: Hi. I am Barbara Walker.

ASSISTANT: Hello, how can I assist you today?

USER: I want to go for a round trip to San Francisco, CA - SFO, please book a ticket under 1000?

ASSISTANT: Sure, Can you share me trip dates please?

USER: 08/01 and 08/03 are my trip dates.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need one connection.

ASSISTANT: Ok, wait for a while. Thanks for waiting we found AA airline with single connection and number 1000. Shall I proceed for booking?

USER: Proceed.

ASSISTANT: Your ticket has been confirmed. Thanks for choosing us.

USER: Thanks for kind response.