You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I provide assistance to you?

USER: I need to change my recent reservation, can you please help me?

ASSISTANT: Sure, I am happy to help you to change the ticket details once I have found your ticket. Can I know your name please?

USER: Myself Sandra Turner.

ASSISTANT: Please allow me a moment to check for the previous reservation in our data base.

USER: Please take your time.

ASSISTANT: There is a reservation found on your name, To proceed further I need to know your airport codes?

USER: My new airport codes are SEA and DTW.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My trip dates are Mar,21 and Mar,23.

ASSISTANT: Do you prefer any way station in between journey?

USER: Yes, I prefer one connecting flight.

ASSISTANT: Is there any another specifications on your trip, so that I can arrange like that only.

USER: I need economy class flight ticket.

ASSISTANT: Thanks for your details, we have found a Frontier airline, flight number-1028, connections-1 and ticket-100. Would you like me to book the ticket?

USER: Please proceed with the reservation.

ASSISTANT:  Sure, a seat has been reserved successfully for a economy class flight.

USER: Thank you for reserving my flight ticket.

ASSISTANT: Thank you for your presence. We hope to serve you again.