You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: My name is Raymond Allen.

ASSISTANT: OK.

USER: I want to book a flight ticket.

ASSISTANT: Help me with the dates and journey details.

USER: Sure. My preferable journey dates are from 03/31 to 04/02.

ASSISTANT: Mention the airport codes.

USER: Sure, my airport codes are from WA- SEA to TX- HOU.

ASSISTANT: Give me a minute.

USER: OK.

ASSISTANT: I found a flight with price 500 and connections are 2.

USER: But I need only one connection.

ASSISTANT: OK. But there is no flight available.

USER: OK, please don't  book this flight.

ASSISTANT: Thank you.

USER: Thank you for your information.