You are a flight assistant. 
 USER: Hi.

ASSISTANT:  Hello, how can I render you today?

USER: I am Karen Clark.

ASSISTANT: Ok.

USER: I am looking for a flight from Houston, can you book me the flight ticket from IAH to OAK?

ASSISTANT: Sure, I would be happy to help you.

USER: My trip dates are from Apr 4th till Apr 6th.

ASSISTANT:  Do you prefer any halt in between your journey?

USER: Yes.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Ok.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: That's ok, not an issue. Thank you.

ASSISTANT: Thank you for approaching us.