You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I have a meeting with my Superior Officer at Houston. Please help me by booking a flight ticket.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your take off and landing airport codes?

USER: MCO and HOU are the respective airport codes.

ASSISTANT: Could you please share your planned journey dates?

USER: July 15 and 17 are my planned travel dates.

ASSISTANT: Let me know your class preference.

USER: Sure, it's business class.

ASSISTANT: Do you need a lay by in between your journey?

USER: Good that you have asked, I need a break in my journey.

ASSISTANT: Give me a minute, I will let you know the flight availability.

USER: Sure and make sure it is a normal-cost airlines.

ASSISTANT: Ok, may I know your good name?

USER: Daniel Lopez here.

ASSISTANT: I am sorry to inform you that,  there were no flights available that matches your requirements.

USER: Oh! I thought you could help me out. That's ok. Thanks for your time.

ASSISTANT: Thank you for reaching us.