You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Sarah Evans here. I want to travel from SFO to HOU, will you help me?

ASSISTANT: Sure, may I know your trip dates?

USER: I would like to travel from 08/12 to 08/14, make sure connection limit should be 1.

ASSISTANT: Sorry to inform you, there is no flight available with your provided details.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your help.

ASSISTANT: My pleasure.