You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I oblige you today?

USER: I am Gary Lewis. I have to attend a Live Concert at Detroit, could you please help me with booking a flight ticket from SFO to DTW?

ASSISTANT: Sure, when are you planning to start and return on?

USER: I would like to depart on June 13th and return on June 15th.

ASSISTANT: How much can you spend in booking your flight ticket?

USER: I can spend 200 for a ticket.

ASSISTANT: We found a flight ticket 1003 in Southwest airline the price is 200 with a halt. Shall I proceed.

USER: Yes, please confirm the booking.

ASSISTANT: Your ticket has been confirmed.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you.