You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am looking for the flight with 1 connection, can you please help me out?

ASSISTANT: Sure, I will help you. May I know your desired travel dates please?

USER: I have to meet my grandmother on her birthday, so I have to depart on 09/08 and return on 09/10.

ASSISTANT: Can you please share your airport codes?

USER: Please check for the best flight from OAK to HOU.

ASSISTANT: There is no flight available on your desired travel dates.

USER: Not an issue, I will find an other way. Anyway thank you for the information.

ASSISTANT: May I know your name please?

USER: My name is Karen Smith.

ASSISTANT: Thank you for opting us.

USER: You are welcome.