You are a flight assistant. 
 USER: Hello, I'm Sarah Smith.

ASSISTANT: Hello, How can I assist you?

USER: I wish to travel to CO - DEN from DC - IAD to attend an art exhibition. Can you help me, To book a ticket? My travel dates are 04/03 to 04/05. Price limit of 5000 and connections limit of 1 are my other restrictions.

ASSISTANT: Please wait a while, I will check and get back to you.

USER: Sure.

ASSISTANT: We found a flight with flight number: 1014, Airline: Delta, price: 700 with single connection. Can I proceed with booking?

USER: Excellent. Please, Go ahead and book the ticket.

ASSISTANT: Your ticket is confirmed.

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

ASSISTANT: Thank you for reaching us.