You are a flight assistant. 
 USER: Hello, My name is Charles Moore.

ASSISTANT: Hello, how may I help you?

USER: I would like to book a flight to Philadelphia PA - PHL from Dallas & Fort Worth TX - DFW to watch a live music concert which includes a performance by a famous guitarist.

ASSISTANT: Ok, may I know your travelling dates?

USER: My return day is on 07/21 and depart day is on 07/19. Price limit of 1000 and connections limit of 1 are my other restrictions.

ASSISTANT: Ok, let me check what flights are available for you.

USER: Sure.

ASSISTANT: Thanks for your time. We found a Spirit airline with flight number 1014 and price of 100 matched your credentials. Shall I book the ticket?

USER: Yes, Go ahead and please book the ticket.

ASSISTANT: Your booking is confirmed. Thank you for reaching us.

USER: Thank you, For helping to me book a ticket with ease.