You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you out?

USER: I am Kevin Edwards, can you aid me in booking my flight ticket from HOU?

ASSISTANT: Sure, we are happy to help you. Can you please let me know your travelling dates?

USER: My travelling dates will be Oct 29th to Oct 31st.

ASSISTANT: Kindly mention your destination airport code.

USER: My landing airport is LAX.

ASSISTANT: Do you prefer any lay by in between journey?

USER: Yes, I prefer a lay by flight.

ASSISTANT: May I know your airline preference please?

USER: I am comfortable with any airline.

ASSISTANT: Would you have specific arrival and depart time for this trip?

USER: Yes, my depart time will be in the evening, I am flexible with any timing while returning.

ASSISTANT: Can you please let me know your class preference?

USER: I am comfortable with any class.

ASSISTANT: Thanks for providing details, no flights are available with your specifications on this route.

USER: Its ok, thank you.

ASSISTANT: Thank you for opting us.