You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a ticket from ATL to HOU, can you help me?

ASSISTANT: Yes, I am here to help you. On which dates you are planning to travel?

USER: My travel dates are Mar 18 and 20.

ASSISTANT: Do you need any break in between the journey?

USER: I prefer a direct flight.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: No.

ASSISTANT: Can I have your name please?

USER: I am Laura King.

ASSISTANT: Thank you for providing your journey details, please wait a moment I'll search best flight for you.

USER: Sure.

ASSISTANT: Thank you for being patient, we didn't find any flights which matches your requirement.

USER: No problem, thanks for checking.

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