You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Eric Evans. Can you please help me to book the flight ticket from Seattle to Houston?

ASSISTANT: Sure, please provide me your planned travel dates.

USER: Thank you. My planned travel dates are Mar 31 and Apr 02.

ASSISTANT: May I know your airport codes?

USER: The source and destination airport codes are SEA and HOU.

ASSISTANT: Do you prefer a halt between your journey?

USER: Yes, I need a single halt in between my journey.

ASSISTANT: We have a flight from Delta airline, number 1007 and the price is 100. Shall I proceed with the booking?

USER: That's perfect, please proceed with the ticket booking.

ASSISTANT: The ticket booking is done in economy class. The flight will depart in the morning and will return in the afternoon.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.

USER: You are welcome.