You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: As my plan to visit a Food Festival got postponed I want to change my existing reservation, can you help me with it?

ASSISTANT: Sure, could you please provide your name to check the details of your reservation?

USER: Yes, you can call me as Ashley Wilson.

ASSISTANT: Ok, found a reservation on your name. Could you provide me your new airport codes?

USER: Ok, I would like to travel from TX-HOU to NY-LGA.

ASSISTANT: Ok, please mention your travelling dates.

USER: My travelling dates would be 02/27 and 02/29.

ASSISTANT: Sorry to say, no flights were found for your details.

USER: Thank you for the information.

ASSISTANT: Thank you for connecting with us. Have a nice day!.