You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: May I know if the flight is available with 1 connection limit to Houston?

ASSISTANT: May I know your travel dates?

USER: Ok, please book the flight ticket on the date 04/19 and return date too on 04/21.

ASSISTANT: Please help me with your airport codes.

USER: Ok, please book the ticket from BOS to TX - IAH.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 with flight number 1009. Shall I proceed with this flight?

USER: Yes, please proceed.

ASSISTANT: Your booking is done.

USER: Thank you for assisting me.

ASSISTANT: Most welcome.