You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: Can you aid me to book a ticket from SFO to HOU?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My trip dates are Aug 14 and Aug 16 respectively.

ASSISTANT: Do you have any preferences?

USER: I prefer for lay by in between my journey.

ASSISTANT: May I know your name please?

USER: Patrick Adams here.

ASSISTANT: There is a direct flight available with Delta airline, shall I proceed?

USER: Please book the ticket.

ASSISTANT: Your booking is done with flight number 1026. Happy journey.

USER: Thank you for the help.

ASSISTANT: You are welcome, have a nice day.