You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I would like to attend a meeting at Houston, please help me in booking a ticket from OAK to IAH.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Could you please share your journey dates?

USER: My planned travel dates are on Jan 27 and Jan 29.

ASSISTANT: Please let me know your connection limit?

USER: I need a direct flight.

ASSISTANT: Do you have any other specifications?

USER: No more specifications.

ASSISTANT: May I know your good name to proceed further?

USER: My name is Carol Evans.

ASSISTANT: Ok, please wait for a minute.

USER: Sure, take your time.

ASSISTANT: Sorry, there are no flights available as per your requirements.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.