You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Help me with booking a ticket by the name Katherine Walker with in the price 200.

ASSISTANT: Ok, could you please provide the city codes you want to travel?

USER: My source is NY-LGA and destination is MI-DTW.

ASSISTANT: Ok, please mention your dates of travel.

USER: I would prefer to start my journey from 07/25 and intend to return on  07/27.

ASSISTANT: Please let me know if you have any connection preference.

USER: Yes, I have. I need a connecting flight.

ASSISTANT: Ok, found a flight 1004 in Hawaiian airline perfectly matching with your requirements with price 100. Shall I proceed with your booking?

USER: That's great, you can reserrve my ticket.

ASSISTANT: Ok, your booking is confirmed.

USER: Thanks for your help.

ASSISTANT: Thanks for choosing us, have a great journey.