You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jack Parker.

ASSISTANT: How can I aid you today?

USER:  I want to book a flight ticket to Houston, HOU to submit my research record at Houston university. Can you help me in my booking?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Could you please help me with your travel dates?

USER: I will start my journey on 03/27. I will return on 03/29.

ASSISTANT: May I know from where you are willing to travel?

USER: My source airport code is New York, NY - EWR.

ASSISTANT: Ok, do you have any other essentials to meet?

USER: I need a flight with a layover.

ASSISTANT: Ok, wait for a while.

USER: Sure.

ASSISTANT: Sorry  Jack Parker, no flights found on your requested travelling dates.

USER: Not an issue.

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

USER: Thank you for your kind information.