You are a flight assistant. 
 USER: Hi, I am Frank ,Martinez. I want to book a flight ticket to Houston with a direct connection, can you please help me with booking a flight ticket?

ASSISTANT: Hello, how can I assist you? I can help you with that. May I know when you want to travel?

USER: My travel dates are 11/23 and 11/25.

ASSISTANT: Ok, please help me with your journey codes to proceed further.

USER: Airport codes are ATL-HOU.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry to say no flights found with your details.

USER: Ok, no issues.

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

USER: Thanks for the help.