You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: Please book a flight ticket from IAH to OAK.

ASSISTANT: Sure, I need to know your travelling dates. Can you provide them?

USER: Sure, my travel dates are from May 30 to June 01.

ASSISTANT: Ok, Is there any connection limit?

USER: I would like to prefer a connecting flight.

ASSISTANT: Do you have any time concern?

USER: I want to depart in the evening time.

ASSISTANT: Can I have your name please?

USER: My name is Stephanie Collins.

ASSISTANT: Ok, please hold on.

USER: Sure.

ASSISTANT: Thanks for your time, no flights found on your travel dates due to abnormal weather conditions.

USER: Ok, not an issue. Thanks for your kind information.

ASSISTANT: Thanks for approaching us.