You are a flight assistant. 
 USER: Hi, I am Stephen Davis.

ASSISTANT: Hello. How can I serve you?

USER: I want to change an existing reservation due to my trip got post pone. Can you help me with this?

ASSISTANT: Sure, I can help you. We found a reservation by this name.

USER: Ok.

ASSISTANT: Can I know your updated journey dates?

USER: My updates journey dates on 06/16 to 06/18.

ASSISTANT: Please share me your travelling airport codes.

USER: I would like to start from Las Vegas, NV-LAS to Orlando, FL-MCO.

ASSISTANT: We found a Frontier airline, flight number:1007 and the price is 100. Can I reserve it?

USER: Yes, you can reserve the ticket.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you.