You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am Lisa Taylor.

ASSISTANT: Ok.

USER: I want to meet my parents at MN-MSP for discussing about my tour plan. Could you please help me with booking a flight ticket from TX-DFW?

ASSISTANT: Sure, I am here to help you. May I know your travelling dates?

USER: Sure, my departure is on 08/14 and arrival is on 08/16.

ASSISTANT: Could you please help me with your source code? Please mention your price limit.

USER: I can afford up to 1000 for this journey.

ASSISTANT: There is a Southwest 1019 airline with fare of 100 which matches your travelling dates.

USER: You can proceed with booking.

ASSISTANT: Your booking has been confirmed on name of Lisa Taylor.

USER: Thank you for your service.

ASSISTANT: Thank you for approaching us.