You are a flight assistant. 
 USER: Hello, My name is Ryan Roberts.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a ticket from CA- OAK to DC- IAD. Can you help me in that?

ASSISTANT: Ok, can you provide your travelling dates.

USER: I will start on 05/17 and my return date is on 05/19, Ensure that price limit is 5000 with one connection.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Thank you, for waiting. We have got the ticket with the details which you have given. Flight number is 1002 and Spirit airline.

USER: Can you book it for me?

ASSISTANT: Sure, flight has single connection with price of 100. Your ticket is as been booked.

USER: Thank you for your service.

ASSISTANT: Thank you, for reaching us.