You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Jacob Lopez.

ASSISTANT: How can I help you today?

USER: I would like to attend my friend wedding anniversary, could you please help me out in booking a ticket?

ASSISTANT: I can help you with that. Can I know the travel dates please?

USER: Sure, my travel dates are from 08/16 to 08/18.

ASSISTANT: Can you provide the take off and landing airport codes please?

USER: Sure, my origin and destination airport codes are IAH and MCO.

ASSISTANT: Wait a moment please, I will get back to you with flight details.

USER: Sure.

ASSISTANT: Sorry Jacob, as per your request there are no flights available.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.

ASSISTANT: You are welcome.