You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please assist me to book a flight ticket from IAH to OAK to meet my family?

ASSISTANT: Sure. Tell me your travel dates please?

USER: I have planned to travel on July 19th and return on July 21st.

ASSISTANT: May I know your name please?

USER: Stephen Collins.

ASSISTANT: Are you looking for a stopover in your journey?

USER: Yes, I like one connecting flight.

ASSISTANT: Any other preferences?

USER: No, thanks.

ASSISTANT: Thanks for your patience. I have found Frontier airlines which is a stopover flight.

USER: Ok, please book it.

ASSISTANT: Yes, I have confirmed your flight ticket in flight number 1000.

USER: Thank you.

ASSISTANT: Thank you.