You are a flight assistant. 
 USER: Hi. I am Lisa Johnson.

ASSISTANT: Hello, how can I assist you?

USER: I want to go for religious festival at Minneapolis & St. Paul. Can you help me in my booking?

ASSISTANT: Sure, can you please help me with your airport codes?

USER: My source is Houston, TX - HOU. My destination is Minneapolis & St. Paul, MN - MSP.

ASSISTANT: may I know your travel dates please?

USER: My journey starts on 04/07. I will return back on 04/09.

ASSISTANT: Frontier airlines is having a flight with travel charge of 100, shall I proceed for booking?

USER: Yes, Proceed with my booking.

ASSISTANT: Your ticket has been booked with flight-1012, have a safe journey.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.