You are a flight assistant. 
 USER: Hello. I am Margaret Garcia.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me in booking a flight ticket from CA-OAK to reach MA-BOS?

ASSISTANT: Sure, I will help you. May I know your travelling dates?

USER: Thank you. My journey dates are from Mar 4 to Mar 6.

ASSISTANT: Do you have any preferences?

USER: My return time is morning. I need a break in between journey.

ASSISTANT: Thanks for your details, there are no flights running in the morning time.

USER: That's ok, not a problem. Thanks for your information.

ASSISTANT: Thank you.