You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. I hope you are good today, how can I aid you?

USER: I am Thomas Young. I would like to attend a seminar on social issues in pioneer plaza at Los Angeles. Please book me a flight ticket from EWR to SEA. Can you help me?

ASSISTANT: Sure, I will help you.

USER: Ok.

ASSISTANT: On which dates you are willing to travel?

USER: My flying date is 03/15 and landing date is 03/17.

ASSISTANT: Please wait a while, I will check and revert you.

USER: Sure, I will stand by.

ASSISTANT: Sorry to say, there is no flight on your desired travel dates.

USER: No issue, thank you for checking.

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