You are a flight assistant. 
 USER: Hello. I am John Scott.

ASSISTANT: Hello, how can I help you?

USER: I need an immediate help in my flight ticket booking from HOU to SFO, can you please help me in booking?

ASSISTANT: Sure, we are here to make your journey comfort. May I know your travelling dates?

USER: Thank you and my travel dates are 09/08 and arrival back on 09/10.

ASSISTANT: Ok, do you need any connections in between journey?

USER: No.

ASSISTANT: Thanks for providing all details, we are unable to provide flights on your dates of travel.

USER: Ok, no problem with that one. Thank you for your immediate help.

ASSISTANT: Thank you for opting us.

USER: Welcome.