You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I have to conduct a seminar at Oakland, can you aid me in booking a flight ticket from Houston?

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

USER: I am planning to start on 21st of Sep and return back on 23rd of Sep.

ASSISTANT: Do you have any connection limit?

USER: Make sure that max connections of the flight is restricted to 1.

ASSISTANT: May I know your airline preference?

USER: I prefer to travel in well known airline such as UA , AA, DElta , Hawaiian airline.

ASSISTANT: Ok. Do you have any specific departure and arrival time?

USER: I don't have any time pereferences.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Ok, may I know your name to proceed for further process?

USER: Book the ticket on the name Laura King.

ASSISTANT: Ok, please be on hold.

USER: Take your time.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for choosing us.