You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today from my end?

USER: Joshua Clark here. Can you book a flight ticket for my airport codes that is from SEA to EWR?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: Yes, my travel dates are from 22 Nov to 24 Nov.

ASSISTANT: Do you have any other requirement?

USER: I am looking for a single connecting flight.

ASSISTANT: Sorry  Joshua Clark, there is no reservation on your name in our database.

USER: Ok, that is not a problem.

ASSISTANT: There is no flight to make reservation for you. Sorry for inconvenience caused.

USER: Ok, I will try with other airlines. Thank you.

ASSISTANT: Thank you for reaching us.