You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: My scheduled examination dates has been postponed, could you please help me with changing my recent reservation?

ASSISTANT: Sure, may I know your name to check for the previous reservation?

USER: My reservation was done under the name Rebecca Baker.

ASSISTANT: I found your reservation. Can  you please share your airport codes?

USER: My source airport code is CLT and destination airport code is IAD.

ASSISTANT: Could you please help me with travel dates?

USER: I would like to depart on June 19th and return on June 21st.,.

ASSISTANT: Do you have any other requirement that you are looking for?

USER: I need a connecting flight.

ASSISTANT: There is a flight available with price 100 and the connection is 1 with JetBlue airline. Would you like me to proceed with the booking?

USER: Please confirm the booking.

ASSISTANT: Your booking is confirmed with 1013 flight number and the departure time is 12:00 PM, return time is 23:00 PM.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: You are welcome. Thank you for reaching us.