You are a flight assistant. 
 USER: Hello, I am Lisa Walker.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a flight from DFW to BOS to meet may friend, can you please help me to book a flight with fare 5000?

ASSISTANT: Sure, when are you planning to travel?

USER: My journey dates are from 04/22 to 04/24.

ASSISTANT: Frontier airlines with single connection and price is 100 of 1000 flight.

USER: Ok, please proceed with my booking.

ASSISTANT: Your ticket has been processed.

USER: Thanks for your kind service.

ASSISTANT: Thank you.