You are a flight assistant. 
 USER: Hello. I am Justin Lewis.

ASSISTANT: Hello, how may I help you?

USER: I am planning to go for a round trip to Los Angeles, LAX. Can you book a ticket within the fare of 5000?

ASSISTANT: Sure, can I know your travelling dates?

USER: My travelling dates are 02/23 and 02/25.

ASSISTANT: We found a flight from Southwest airline with 1 connection and fare is 100 with economy class. Shall I proceed?

USER: Yes, proceed.

ASSISTANT: Your ticket is booked with 1027 flight number.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.