I want to go, but my mom won't let me.
or
I want to go but, my mom won't let me.
Neurotransmitters work locally and their actions are very fast. Both hormones and neurotransmitters act as chemical messengers in the body. However, neurotransmitters' actions are short-lived while hormones act for longer periods of time. Neurotransmitters are delivered through the bloodstream, whereas hormones are found primarily in the synaptic cleft. Hormones are mostly released by glands, whereas neurotransmitters are made in the cell body of the neuron.
Answer:
An associate should continue to smile and try to be of some help in this type of situation.
Explanation: The customer might be frustrated because of the question they're about to ask the employee. Maybe if the employee helps with the question there frustration will end. :)