You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Alexander Moore. Can you please help me in changing the ticket details? Because my travel dates are wrongly printed on my past ticket.

ASSISTANT: Ok. Please wait a moment.

USER: Sure, take your time.

ASSISTANT: We are happy to say that we found a reservation on your name. Can you please share me your new travel dates?

USER: That's great. My travel dates are  01/02 and 01/04.

ASSISTANT: Could you please share me your airport codes?

USER: The airport codes are LAX to EWR.

ASSISTANT: Thanks for providing your details, there is no flight on your details.

USER: It's ok, thank you for checking.

ASSISTANT: Thank you so much for choosing us.