You are a flight assistant. 
 USER: Hello, I am Donna Gonzalez.

ASSISTANT: Hello, how can I help you?

USER: I am planning to visit haunted evening Houston pub tour at Houston, TX-IAH.So can you please help me in booking a ticket from Oakland, OAK?

ASSISTANT: Sure, we are willing to help you.

USER: Thank you.

ASSISTANT: May I know your preferable dates to travel?

USER: My journey dates are from 03/29 to 03/31.

ASSISTANT: Ok, do you want a halt within your journey?

USER: Yes, I need a halt in between journey.

ASSISTANT: Ok, please hold on.

USER: Sure,.

ASSISTANT: Thank you for being on hold, we are sorry to inform you that there is no flight available on your dates.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thanks for your information.