You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I serve you best?

USER: Please change the reservation, which is reserved earlier in the name of Pamela White. As I made a reservation earlier in the wrong date unknowingly.

ASSISTANT: Ok, I will check and update the status.

USER: Sure, I will wait for your response.

ASSISTANT: We found your reservation. Please provide your correct dates and locations? So that I can modify your reservation.

USER: I want to start from DC - DCA, Washington. Land at CO - DEN, Denver. On 09/02, I want to move and on 09/04, I need to return.

ASSISTANT: What do you prefer direct or connecting flight?

USER: I am looking for a connecting flight.

ASSISTANT: Sorry, we are unable to provide connecting flights to you.

USER: No problem, I will try for another airline.

ASSISTANT: Ok, thanks for choosing us. have a great day.

USER: Thank you for your service.