You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you at this moment?

USER: I am Edward Moore. I need to book a flight ticket from BOS to HOU, Can you please help me for booking?

ASSISTANT: Sure, I will help you with that. Can you please mention your preferable travel dates?

USER: I would like to travel on 04/28 to return on 04/30.

ASSISTANT: Is there any additional preferences do you have?

USER: I need a connecting flight in between my journey.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry no connecting flights are available in this route as per your requested dates.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for reaching us, have a nice day.