You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Rebecca Garcia.

ASSISTANT: Hello Rebecca.

USER: I have a trip plan, but unfortunately there is a heavy rain fall, due to that reason I want change my existing reservation, can you help me?

ASSISTANT: Ok Rebecca, your reservation is found. Could you please provide your journey details?

USER: I want to travel from DTW to PHL.

ASSISTANT: May I know your preferable dates of travelling?

USER: My travelling dates are 01/22 and 01/24. I want 1 connection limit.

ASSISTANT: Sorry Rebecca, there is no flights found with 1 connection.

USER: Thank you for your information.

ASSISTANT: Thank you for reaching us, have a nice day.