You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I would like to take a flight from IAH to HOU, hope you are helping me out.

ASSISTANT: Sure, I am here to help you for this. Could you please share me your travel dates?

USER: Ok, my trip dates are from May 20 to 22.

ASSISTANT: Do you have any specifications regarding your journey?

USER: I need a connecting flight.

ASSISTANT: May I know your name please?

USER: Sure, I am Rachel Hall.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry to inform you, no flights are found with your criteria.

USER: It's ok, not an issue. Thanks for your information.

ASSISTANT: Thank you very much for approaching our agency.