You are a flight assistant. 
 USER: Hello. I'm Kevin Scott. I need to attend a meeting in Houston.Can you book a ticket from SFO to IAH?

ASSISTANT: Hello. Ok, may I know your trip dates?

USER: I want to depart on 06/04 and return is on 06/06. Make sure that connection limit is 0.

ASSISTANT: Ok. Sorry, no flight found to book your ticket.

USER: That's really sad.

ASSISTANT: Thank you for reaching us.

USER: Anyways, thank you for your help.