You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Joseph Green here, I want to reserve my ticket from HOU on 12/06, can you please help me in this?

ASSISTANT: Sure, can you please share your travelling return details?

USER: Ok, my destination airport code is SEA and my return date will be on 12/08.

ASSISTANT: There is a connecting flight from Southwest airlines, shall I proceed? Sorry, there is no flight as per your details.

USER: Ok, no problem. I will try with the another travelling agency. Thank you for your service.

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