You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I would like to travel to Atlanta, can you please help me to book a flight ticket from Charlotte?

ASSISTANT: Sure, I will help you. Please help me with your planned travelling dates.

USER: Thank you. My journey dates are July 25th and July 27th.

ASSISTANT: Do you need a break in between your journey?

USER: No, I am looking for a direct flight.

ASSISTANT: Do you have any other preferences in your journey?

USER: I am able to catch the departing flight which is in the morning time.

ASSISTANT: Sure, I will check with it. Please help me with your name.

USER: My name is Joseph Wright.

ASSISTANT: Please allow me a minute.

USER: Sure, take your time.

ASSISTANT: Joseph Wright, I am really sorry to inform you that there are no flights available for your journey.

USER: It's ok, not a problem with that. Thank you for your time.

ASSISTANT: Thank you for understanding. Thank you for reaching us. Have a great time.

USER: You are most welcome.