You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Donna Martinez, I would like to go from IAH to MCO, can you please help me to book a ticket?

ASSISTANT: Sure, Donna Martinez, we are at your service. Can you please provide your journey dates?

USER: I would like to leave between 06/30 and 07/02.

ASSISTANT: Fine, Do you have any other requirements?

USER: Yes, I need direct flight with the price of 200.

ASSISTANT: Thanks for your details, please wait for a couple of minutes.

USER: Ok.

ASSISTANT: Thanks for your patience, we are sorry to inform you that we did not find any direct flight based on your schedule.

USER: Ok, no problem. Thank you so much.

ASSISTANT: Thanks for availing us, have a great day.