You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am looking for a direct flight for my journey from SEA to IAH, can you please help me to book my flight ticket?

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: I will depart on Feb 8th and return on Feb 10th.

ASSISTANT: Ok, may I know your name for further proceedings?

USER: I am Margaret Garcia.

ASSISTANT: Do you have any specification?

USER: No, please check for the direct flight and let me know.

ASSISTANT: Sorry, no flights are available on your preferable travel dates.

USER: Sad to hear that. Anyway, thank you for checking.

ASSISTANT: Thank you for opting us, have a nice day.