You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket from HOU to SEA to meet my parents and discuss about my higher studies. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Sure, my travelling dates are Feb 26 and Feb 28.

ASSISTANT: Which class do you prefer to travel?

USER: I am comfortable with any class.

ASSISTANT: May I know your connection limit?

USER: Sure, I prefer to travel in a connecting flight.

ASSISTANT: Do you have any depart and return time preference?

USER: Yes, I intend to depart in the evening.

ASSISTANT: May I know your name to proceed further with the booking?

USER: Sure, I am Samuel Moore.

ASSISTANT: Sorry, we don't have any flight available which meets all your journey criteria.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for opting us.