You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me with changing my recent reservation?

ASSISTANT: Sure, can I know your name?

USER: My name is Jacob Lee.

ASSISTANT: Please hold on a moment.

USER: Ok.

ASSISTANT: We found your reservation. Can I know your travelling dates?

USER: Travelling dates are Apr 03 and 05.

ASSISTANT: Ok, let me know your source and destination airport codes?

USER: Airport codes are IAD and EWR.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: We found direct flight from AA airline with price 100 and economy class and airline number is 1009 with arrival time is 10 AM and departure time is 16 PM, Shall I proceed for booking?

USER: You can proceed with booking.

ASSISTANT: Your ticket is booked.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us.