You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I would like to book a flight ticket with the name Larry Walker. Can you help me?

ASSISTANT: Sure, may I know your airport codes?

USER: My airport codes are CA-LAX to MN-MSP.

ASSISTANT: Do you have any price limit?

USER: I need a ticket with in the price limit 200.

ASSISTANT: Ok, may I know your preferable dates of travel?

USER: I will start on 04/29 and I intend to return on 05/01.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: I found a direct flight with the price of 200. Shall I go with the booking?

USER: make sure I need one connection.

ASSISTANT: I am sorry we have a direct flight.

USER: Ok, thanks for your help.

ASSISTANT: Thanks for opting us, have a good day.