You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Samuel James. I would like to book a ticket from SEA to EWR, can you please help me out?

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

USER: I am travelling on these dates April 19th and 21st.

ASSISTANT: Do your prefer to travel in a direct flight or a connecting flight?

USER: I prefer departure in the morning and return time in the morning. I need connecting flight too.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time so that you can provide me the flight that satisfies my requirements.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: Ok no problem, thank you for your kind and helpful information with your patience and checking about flights.

ASSISTANT: Thank you for approaching us.