You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Brenda Gonzalez.

ASSISTANT: How can I assist you today?

USER: I would like to visit PHL to meet my cousin, can you please help me to book a flight ticket from HOU?

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: My travelling dates are July 23 and July 25.

ASSISTANT: May I know your class preference please?

USER: I am comfortable to travel in any class.

ASSISTANT: May I know your airlines preference please?

USER: No, I am not looking for any airlines.

ASSISTANT: Please let me know if you have any other specifications.

USER: I would like to start my journey for the afternoon time and I need a direct flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your own time.

ASSISTANT: Sorry to inform you that there are no flights available for you on those dates with your given details.

USER: That's ok, thank you for your information.

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