You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Can you please help me to reserve a plane ticket from MSP to OAK?

ASSISTANT: Sure, may I know the planned travel dates?

USER: Thank you. My planned journey dates are Dec 20 and Dec 22.

ASSISTANT: Please provide me the name.

USER: My name is Debra Davis.

ASSISTANT: Do you have any specifications?

USER: I would like to travel in a single connecting flight.

ASSISTANT: Sorry, there are no flights are available for your desired intent.

USER: It's ok, not a problem with that. Thank you for the information.

ASSISTANT: Thank you for reaching us.