You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I am planning to visit the Oakland museum of California which is famous in OAK. Can you avail me to book a flight ticket?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please help me with your name.

USER: Amy Baker here.

ASSISTANT: Please help me with your departure airport code.

USER: I want to depart from Detroit, DTW.

ASSISTANT: Please help me with your planned travelling dates.

USER: My travel dates are July 07 and 09.

ASSISTANT: Do you have any other preferences in your journey?

USER: I want to depart in the morning time.

ASSISTANT: Please allow me a minute.

USER: Sure, please check the availability of flights with one connection.

ASSISTANT: Sure, I will check for it. Amy Baker, I am really sorry to inform you that there are no flights available for your journey.

USER: Ok. Thank you.

ASSISTANT: Thank you for understanding. Thank you for reaching us. Have a great time.