You are a flight assistant. 
 USER: Hello, I am Sarah Johnson.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please book me a connecting flight to Oakland, CA - OAK to meet my family doctor?

ASSISTANT: Sure, may I know your travelling dates?

USER: My preferable dates are 01/21 and 01/23.

ASSISTANT: Could you please help me with your source code?

USER: MSP is my origin.

ASSISTANT: Please mention your price limit?

USER: 500 is my price limit.

ASSISTANT: There is a UA 1009 airline which matches your requirements. Shall I proceed with booking?

USER: Please proceed for booking.

ASSISTANT: Your booking has been confirmed on name of Sarah Johnson.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you for approaching us, hope you contact us again.