You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I want to travel from SFO to HOU, can you please reserve me a flight ticket?

ASSISTANT: Sure, May I know the travelling dates?

USER: My travelling dates are from July 15th to July 17th.

ASSISTANT: Do you have any connection limit?

USER: Yes, I want a single connection in between my journey.

ASSISTANT: Is there any other requirements?

USER: I prefer major airlines to travel. I want to return in the afternoon.

ASSISTANT: May I know your name?

USER: I am Kathleen Rodriguez.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: No problem, thank you.

ASSISTANT: Thank you for opting us.